diff --git a/README.md b/README.md
index 1217b7f..fa13082 100644
--- a/README.md
+++ b/README.md
@@ -56,11 +56,11 @@ if __name__ == '__main__':
 import re
 from argenta.router import Router
 from argenta.command import Command
-from argenta.command.flag.registered_flag import FlagsGroup, Flag
+from argenta.command.flag.registered_flag import Flags, Flag
 
 router = Router()
 
-registered_flags = FlagsGroup(
+registered_flags = Flags(
     Flag(flag_name='host',
          flag_prefix='--',
          possible_flag_values=re.compile(r'^192.168.\d{1,3}.\d{1,3}$')),
@@ -315,14 +315,14 @@ Router(title: str = 'Commands group title:',
 ```python
 Command(trigger: str,
         description: str = None,
-        flags: Flag | FlagsGroup = None)
+        flags: Flag | Flags = None)
 ```
 
 **Аргументы:**
 - **name : mean**
 - `trigger` (`str`): Строковый триггер
 - `description` (`str`): Описание команды, которое будет выведено в консоль при запуске оболочки
-- `flags` (`Flag | FlagsGroup`): Флаги, которые будут обработаны при их наличии во вводе юзера
+- `flags` (`Flag | Flags`): Флаги, которые будут обработаны при их наличии во вводе юзера
 
 ---
 
@@ -338,7 +338,7 @@ Command(trigger: str,
 
 ---
 
-#### **.get_registered_flags() -> `FlagsGroup | None`**  
+#### **.get_registered_flags() -> `Flags | None`**  
 
 *method mean* **::** возвращает зарегистрированные флаги экземпляра
 
@@ -402,14 +402,14 @@ Flag(flag_name: str,
 
 ---
 
-##  *class* :: `FlagsGroup` 
+##  *class* :: `Flags` 
 Класс, объединяющий список флагов в один объект, используется в качестве 
 передаваемого аргумента `flags` экземпляру класса `Command`, при регистрации
 хэндлера
 
 ### Конструктор
 ```python
-FlagsGroup(*flagы: Flag)
+Flags(*flagы: Flag)
 ```
 
 ---
diff --git a/argenta/app/entity.py b/argenta/app/entity.py
index 2449ffe..d6c80ed 100644
--- a/argenta/app/entity.py
+++ b/argenta/app/entity.py
@@ -2,7 +2,7 @@ from typing import Callable
 from inspect import getfullargspec
 import re
 
-from argenta.command import Command
+from argenta.command.models import Command, InputCommand
 from argenta.router import Router
 from argenta.router.defaults import system_router
 from argenta.command.exceptions import (UnprocessedInputFlagException,
@@ -78,7 +78,7 @@ class App:
             raw_command: str = input()
 
             try:
-                input_command: Command = Command.parse_input_command(raw_command=raw_command)
+                input_command: InputCommand = InputCommand.parse_input_command(raw_command=raw_command)
             except UnprocessedInputFlagException:
                 self.print_func(self.line_separate)
                 self._invalid_input_flags_handler(raw_command)
@@ -223,7 +223,7 @@ class App:
             self.include_router(system_router)
 
 
-    def _is_exit_command(self, command: Command):
+    def _is_exit_command(self, command: InputCommand):
         if command.get_trigger().lower() == self.exit_command.lower():
             if self.ignore_exit_command_register:
                 system_router.input_command_handler(command)
@@ -235,7 +235,7 @@ class App:
         return False
 
 
-    def _check_is_command_unknown(self, command: Command):
+    def _check_is_command_unknown(self, command: InputCommand):
         for router_entity in self._registered_routers:
             for command_handler in router_entity.get_command_handlers():
                 handled_command_trigger = command_handler.get_handled_command().get_trigger()
diff --git a/argenta/command/__init__.py b/argenta/command/__init__.py
index 82d390d..627a1d2 100644
--- a/argenta/command/__init__.py
+++ b/argenta/command/__init__.py
@@ -1,3 +1,3 @@
 __all__ = ["Command"]
 
-from .entity import Command
\ No newline at end of file
+from .models import Command
\ No newline at end of file
diff --git a/argenta/command/exceptions.py b/argenta/command/exceptions.py
index fedd8c1..3437c8d 100644
--- a/argenta/command/exceptions.py
+++ b/argenta/command/exceptions.py
@@ -1,5 +1,4 @@
-from argenta.command.flag.input_flag.entity import InputFlag
-from argenta.command.flag.registered_flag.entity import Flag
+from argenta.command.flag.models import InputFlag, Flag
 
 
 class UnprocessedInputFlagException(Exception):
diff --git a/argenta/command/flag/base_flag/__init__.py b/argenta/command/flag/base_flag/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/argenta/command/flag/base_flag/entity.py b/argenta/command/flag/base_flag/entity.py
deleted file mode 100644
index a648b07..0000000
--- a/argenta/command/flag/base_flag/entity.py
+++ /dev/null
@@ -1,41 +0,0 @@
-from typing import Literal, Pattern
-
-
-class BaseFlag:
-    def __init__(self, flag_name: str,
-                 flag_prefix: Literal['-', '--', '---'] = '--',
-                 possible_flag_values: list[str] | Pattern[str] | False = True):
-        self._flag_name = flag_name
-        self._flag_prefix = flag_prefix
-        self.possible_flag_values = possible_flag_values
-
-    def get_string_entity(self):
-        string_entity: str = self._flag_prefix + self._flag_name
-        return string_entity
-
-    def get_flag_name(self):
-        return self._flag_name
-
-    def get_flag_prefix(self):
-        return self._flag_prefix
-
-    def validate_input_flag_value(self, input_flag_value: str | None):
-        if self.possible_flag_values is False:
-            if input_flag_value is None:
-                return True
-            else:
-                return False
-        elif isinstance(self.possible_flag_values, Pattern):
-            is_valid = bool(self.possible_flag_values.match(input_flag_value))
-            if bool(is_valid):
-                return True
-            else:
-                return False
-
-        elif isinstance(self.possible_flag_values, list):
-            if input_flag_value in self.possible_flag_values:
-                return True
-            else:
-                return False
-        else:
-            return True
diff --git a/argenta/command/flag/defaults.py b/argenta/command/flag/defaults.py
new file mode 100644
index 0000000..99caf65
--- /dev/null
+++ b/argenta/command/flag/defaults.py
@@ -0,0 +1,21 @@
+from dataclasses import dataclass
+from argenta.command.flag.models import Flag
+import re
+
+
+@dataclass
+class DefaultFlags:
+    HELP = Flag(name='help', possible_values=False)
+    SHORT_HELP = Flag(name='h', prefix='-', possible_values=False)
+
+    INFO = Flag(name='info', possible_values=False)
+    SHORT_INFO = Flag(name='i', prefix='-', possible_values=False)
+
+    ALL = Flag(name='all', possible_values=False)
+    SHORT_ALL = Flag(name='a', prefix='-', possible_values=False)
+
+    HOST = Flag(name='host', possible_values=re.compile(r'^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$'))
+    SHORT_HOST = Flag(name='h', prefix='-', possible_values=re.compile(r'^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$'))
+
+    PORT = Flag(name='port', possible_values=re.compile(r'^\d{1,5}$'))
+    SHORT_PORT = Flag(name='p', prefix='-', possible_values=re.compile(r'^\d{1,5}$'))
diff --git a/argenta/command/flag/flags_group/__init__.py b/argenta/command/flag/flags_group/__init__.py
deleted file mode 100644
index 81092c9..0000000
--- a/argenta/command/flag/flags_group/__init__.py
+++ /dev/null
@@ -1,4 +0,0 @@
-__all__ = ["FlagsGroup"]
-
-
-from .entity import FlagsGroup
\ No newline at end of file
diff --git a/argenta/command/flag/flags_group/entity.py b/argenta/command/flag/flags_group/entity.py
deleted file mode 100644
index 28c1ff8..0000000
--- a/argenta/command/flag/flags_group/entity.py
+++ /dev/null
@@ -1,36 +0,0 @@
-from argenta.command.flag.input_flag.entity import InputFlag
-from argenta.command.flag.registered_flag import Flag
-
-
-class FlagsGroup:
-    def __init__(self, *flags: Flag | InputFlag):
-        self._flags: list[Flag | InputFlag] = [] if not flags else flags
-
-    def get_flags(self) -> list[Flag | InputFlag]:
-        return self._flags
-
-    def add_flag(self, flag: Flag | InputFlag):
-        self._flags.append(flag)
-
-    def add_flags(self, flags: list[Flag | InputFlag]):
-        self._flags.extend(flags)
-
-    def unparse_to_dict(self):
-        result_dict: dict[str, dict] = {}
-        for flag in self.get_flags():
-            result_dict[flag.get_flag_name()] = {
-                'name': flag.get_flag_name(),
-                'string_entity': flag.get_string_entity(),
-                'prefix': flag.get_flag_prefix(),
-                'value': flag.get_value()
-            }
-        return result_dict
-
-    def __iter__(self):
-        return iter(self._flags)
-
-    def __next__(self):
-        return next(iter(self))
-
-    def __getitem__(self, item):
-        return self._flags[item]
diff --git a/argenta/command/flag/input_flag/__init__.py b/argenta/command/flag/input_flag/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/argenta/command/flag/input_flag/entity.py b/argenta/command/flag/input_flag/entity.py
deleted file mode 100644
index 795216f..0000000
--- a/argenta/command/flag/input_flag/entity.py
+++ /dev/null
@@ -1,18 +0,0 @@
-from re import Pattern
-from typing import Literal
-
-from argenta.command.flag.base_flag.entity import BaseFlag
-
-
-class InputFlag(BaseFlag):
-    def __init__(self, flag_name: str,
-                 flag_prefix: Literal['-', '--', '---'] = '--',
-                 possible_flag_values: list[str] | Pattern[str] | False = True):
-        super().__init__(flag_name, flag_prefix, possible_flag_values)
-        self._flag_value = None
-
-    def get_value(self):
-        return self._flag_value
-
-    def set_value(self, value):
-        self._flag_value = value
diff --git a/argenta/command/flag/models.py b/argenta/command/flag/models.py
new file mode 100644
index 0000000..f611844
--- /dev/null
+++ b/argenta/command/flag/models.py
@@ -0,0 +1,133 @@
+from typing import Literal, Pattern
+from abc import ABC, abstractmethod
+
+
+class BaseFlag:
+    def __init__(self, name: str,
+                 prefix: Literal['-', '--', '---'] = '--',
+                 possible_values: list[str] | Pattern[str] | False = True):
+        self._name = name
+        self._prefix = prefix
+        self.possible_values = possible_values
+
+    def get_string_entity(self):
+        string_entity: str = self._prefix + self._name
+        return string_entity
+
+    def get_name(self):
+        return self._name
+
+    def get_prefix(self):
+        return self._prefix
+
+
+
+class InputFlag(BaseFlag):
+    def __init__(self, name: str,
+                 prefix: Literal['-', '--', '---'] = '--',
+                 possible_values: list[str] | Pattern[str] | False = True):
+        super().__init__(name, prefix, possible_values)
+        self._flag_value = None
+
+    def get_value(self):
+        return self._flag_value
+
+    def set_value(self, value):
+        self._flag_value = value
+
+
+
+class Flag(BaseFlag):
+    def validate_input_flag_value(self, input_flag_value: str | None):
+        if self.possible_values is False:
+            if input_flag_value is None:
+                return True
+            else:
+                return False
+        elif isinstance(self.possible_values, Pattern):
+            is_valid = bool(self.possible_values.match(input_flag_value))
+            if bool(is_valid):
+                return True
+            else:
+                return False
+
+        elif isinstance(self.possible_values, list):
+            if input_flag_value in self.possible_values:
+                return True
+            else:
+                return False
+        else:
+            return True
+
+
+
+class BaseFlags(ABC):
+    __slots__ = ('_flags',)
+
+    @abstractmethod
+    def get_flags(self):
+        pass
+
+    @abstractmethod
+    def add_flag(self, flag: Flag | InputFlag):
+        pass
+
+    @abstractmethod
+    def add_flags(self, flags: list[Flag] | list[InputFlag]):
+        pass
+
+    @abstractmethod
+    def get_flag(self, name: str):
+        pass
+
+    def __iter__(self):
+        return iter(self._flags)
+
+    def __next__(self):
+        return next(iter(self))
+
+    def __getitem__(self, item):
+        return self._flags[item]
+
+
+
+class Flags(BaseFlags, ABC):
+    def __init__(self, *flags: Flag):
+        self._flags = flags if flags else []
+
+    def get_flags(self) -> list[Flag]:
+        return self._flags
+
+    def add_flag(self, flag: Flag):
+        self._flags.append(flag)
+
+    def add_flags(self, flags: list[Flag]):
+        self._flags.extend(flags)
+
+    def get_flag(self, name: str) -> Flag | None:
+        if name in [flag.get_name() for flag in self._flags]:
+            return list(filter(lambda flag: flag.get_name() == name, self._flags))[0]
+        else:
+            return None
+
+
+
+class InputFlags(BaseFlags, ABC):
+    def __init__(self, *flags: InputFlag):
+        self._flags = flags if flags else []
+
+    def get_flags(self) -> list[InputFlag]:
+        return self._flags
+
+    def add_flag(self, flag: InputFlag):
+        self._flags.append(flag)
+
+    def add_flags(self, flags: list[InputFlag]):
+        self._flags.extend(flags)
+
+    def get_flag(self, name: str) -> InputFlag | None:
+        if name in [flag.get_name() for flag in self._flags]:
+            return list(filter(lambda flag: flag.get_name() == name, self._flags))[0]
+        else:
+            return None
+
diff --git a/argenta/command/flag/registered_flag/__init__.py b/argenta/command/flag/registered_flag/__init__.py
deleted file mode 100644
index 6983251..0000000
--- a/argenta/command/flag/registered_flag/__init__.py
+++ /dev/null
@@ -1,5 +0,0 @@
-__all__ = ["Flag", "FlagsGroup"]
-
-
-from .entity import Flag
-from argenta.command.flag.flags_group import FlagsGroup
\ No newline at end of file
diff --git a/argenta/command/flag/registered_flag/defaults.py b/argenta/command/flag/registered_flag/defaults.py
deleted file mode 100644
index fe40683..0000000
--- a/argenta/command/flag/registered_flag/defaults.py
+++ /dev/null
@@ -1,21 +0,0 @@
-from dataclasses import dataclass
-from argenta.command.flag.registered_flag import Flag
-import re
-
-
-@dataclass
-class DefaultFlags:
-    HELP = Flag(flag_name='help', possible_flag_values=False)
-    SHORT_HELP = Flag(flag_name='h', flag_prefix='-', possible_flag_values=False)
-
-    INFO = Flag(flag_name='info', possible_flag_values=False)
-    SHORT_INFO = Flag(flag_name='i', flag_prefix='-', possible_flag_values=False)
-
-    ALL = Flag(flag_name='all', possible_flag_values=False)
-    SHORT_ALL = Flag(flag_name='a', flag_prefix='-', possible_flag_values=False)
-
-    HOST = Flag(flag_name='host', possible_flag_values=re.compile(r'^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$'))
-    SHORT_HOST = Flag(flag_name='h', flag_prefix='-', possible_flag_values=re.compile(r'^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$'))
-
-    PORT = Flag(flag_name='port', possible_flag_values=re.compile(r'^\d{1,5}$'))
-    SHORT_PORT = Flag(flag_name='p', flag_prefix='-', possible_flag_values=re.compile(r'^\d{1,5}$'))
diff --git a/argenta/command/flag/registered_flag/entity.py b/argenta/command/flag/registered_flag/entity.py
deleted file mode 100644
index 3c31f5d..0000000
--- a/argenta/command/flag/registered_flag/entity.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from argenta.command.flag.base_flag.entity import BaseFlag
-
-
-class Flag(BaseFlag):
-    pass
diff --git a/argenta/command/entity.py b/argenta/command/models.py
similarity index 56%
rename from argenta/command/entity.py
rename to argenta/command/models.py
index 7473127..67e25a9 100644
--- a/argenta/command/entity.py
+++ b/argenta/command/models.py
@@ -1,40 +1,40 @@
-from argenta.command.flag.registered_flag.entity import Flag
-from argenta.command.flag.input_flag.entity import InputFlag
-from argenta.command.flag.flags_group import FlagsGroup
-from .exceptions import (UnprocessedInputFlagException,
-                         RepeatedInputFlagsException,
-                         EmptyInputCommandException)
-
+from argenta.command.flag.models import Flag, InputFlag, Flags, InputFlags
+from argenta.command.exceptions import (UnprocessedInputFlagException,
+                                         RepeatedInputFlagsException,
+                                         EmptyInputCommandException)
 from typing import Generic, TypeVar, cast, Literal
 
 
-CommandType = TypeVar('CommandType')
+BaseCommandType = TypeVar('BaseCommandType')
 
 
-class Command(Generic[CommandType]):
+class BaseCommand(Generic[BaseCommandType]):
     def __init__(self, trigger: str,
                  description: str = None,
-                 flags: Flag | FlagsGroup = None):
+                 flags: Flag | Flags = None):
         self._trigger = trigger
         self._description = f'description for "{self._trigger}" command' if not description else description
-        self._registered_flags: FlagsGroup | None = flags if isinstance(flags, FlagsGroup) else FlagsGroup(flags) if isinstance(flags, Flag) else flags
-        self._input_flags: FlagsGroup | None = None
-
 
     def get_trigger(self) -> str:
         return self._trigger
 
-
     def get_description(self) -> str:
         return self._description
 
 
-    def get_registered_flags(self) -> FlagsGroup | None:
+
+class Command(BaseCommand):
+    def __init__(self, trigger: str,
+                 description: str = None,
+                 flags: Flag | Flags = None):
+        super().__init__(trigger, description)
+        self._registered_flags: Flags = flags if isinstance(flags, Flags) else Flags(flags) if isinstance(flags, Flag) else Flags()
+
+    def get_registered_flags(self) -> Flags:
         return self._registered_flags
 
-
     def validate_input_flag(self, flag: InputFlag):
-        registered_flags: FlagsGroup | None = self.get_registered_flags()
+        registered_flags: Flags | None = self.get_registered_flags()
         if registered_flags:
             if isinstance(registered_flags, Flag):
                 if registered_flags.get_string_entity() == flag.get_string_entity():
@@ -50,21 +50,29 @@ class Command(Generic[CommandType]):
         return False
 
 
-    def _set_input_flags(self, input_flags: FlagsGroup):
+
+class InputCommand(BaseCommand):
+    def __init__(self, trigger: str,
+                 description: str = None,
+                 input_flags: InputFlag | InputFlags = None):
+        super().__init__(trigger, description)
+        self._input_flags: InputFlags = input_flags if isinstance(input_flags, InputFlags) else InputFlags(input_flags) if isinstance(input_flags, InputFlag) else InputFlags()
+
+    def _set_input_flags(self, input_flags: InputFlags):
         self._input_flags = input_flags
 
-    def get_input_flags(self) -> FlagsGroup:
+    def get_input_flags(self) -> InputFlags:
         return self._input_flags
 
     @staticmethod
-    def parse_input_command(raw_command: str) -> CommandType:
+    def parse_input_command(raw_command: str) -> BaseCommandType:
         if not raw_command:
             raise EmptyInputCommandException()
         list_of_tokens = raw_command.split()
         command = list_of_tokens[0]
         list_of_tokens.pop(0)
 
-        flags: FlagsGroup = FlagsGroup()
+        input_flags: InputFlags = InputFlags()
         current_flag_name = None
         current_flag_value = None
         for k, _ in enumerate(list_of_tokens):
@@ -80,19 +88,19 @@ class Command(Generic[CommandType]):
                 else:
                     current_flag_value = _
             if current_flag_name:
-                if not len(list_of_tokens) == k+1:
-                    if not list_of_tokens[k+1].startswith('-'):
+                if not len(list_of_tokens) == k + 1:
+                    if not list_of_tokens[k + 1].startswith('-'):
                         continue
                 flag_prefix_last_symbol_index = current_flag_name.rfind('-')
-                flag_prefix = current_flag_name[:flag_prefix_last_symbol_index+1]
-                flag_name = current_flag_name[flag_prefix_last_symbol_index+1:]
-                input_flag = InputFlag(flag_name=flag_name,
-                                       flag_prefix=cast(Literal['-', '--', '---'], flag_prefix))
+                flag_prefix = current_flag_name[:flag_prefix_last_symbol_index + 1]
+                flag_name = current_flag_name[flag_prefix_last_symbol_index + 1:]
+                input_flag = InputFlag(name=flag_name,
+                                       prefix=cast(Literal['-', '--', '---'], flag_prefix))
                 input_flag.set_value(current_flag_value)
 
-                all_flags = [x.get_string_entity() for x in flags.get_flags()]
+                all_flags = [x.get_string_entity() for x in input_flags.get_flags()]
                 if input_flag.get_string_entity() not in all_flags:
-                    flags.add_flag(input_flag)
+                    input_flags.add_flag(input_flag)
                 else:
                     raise RepeatedInputFlagsException(input_flag)
 
@@ -100,12 +108,10 @@ class Command(Generic[CommandType]):
                 current_flag_value = None
         if any([current_flag_name, current_flag_value]):
             raise UnprocessedInputFlagException()
-        if len(flags.get_flags()) == 0:
-            return Command(trigger=command)
+        if len(input_flags.get_flags()) == 0:
+            return InputCommand(trigger=command)
         else:
-            input_command = Command(trigger=command)
-            input_command._set_input_flags(flags)
+            input_command = InputCommand(trigger=command)
+            input_command._set_input_flags(input_flags)
             return input_command
 
-
-
diff --git a/argenta/router/command_handler/entity.py b/argenta/router/command_handler/entity.py
index b147bbb..a202713 100644
--- a/argenta/router/command_handler/entity.py
+++ b/argenta/router/command_handler/entity.py
@@ -1,14 +1,15 @@
 from typing import Callable
 from argenta.command import Command
+from argenta.command.flag.models import InputFlags
 
 
 class CommandHandler:
-    def __init__(self, handler: Callable[[], None] | Callable[[dict], None], handled_command: Command):
+    def __init__(self, handler: Callable[[], None] | Callable[[InputFlags], None], handled_command: Command):
         self.handler = handler
         self.handled_command = handled_command
 
-    def handling(self, input_flags: dict = None):
-        if input_flags is not None:
+    def handling(self, input_flags: InputFlags):
+        if input_flags.get_flags():
             self.handler(input_flags)
         else:
             self.handler()
diff --git a/argenta/router/entity.py b/argenta/router/entity.py
index 6c1c20c..c6bbc0d 100644
--- a/argenta/router/entity.py
+++ b/argenta/router/entity.py
@@ -2,21 +2,21 @@ from typing import Callable, Any
 from inspect import getfullargspec
 
 from argenta.command import Command
+from argenta.command.models import InputCommand
 from argenta.router.command_handlers.entity import CommandHandlers
 from argenta.router.command_handler.entity import CommandHandler
-from argenta.command.flag.registered_flag import Flag, FlagsGroup
+from argenta.command.flag.models import Flag, Flags, InputFlags
 from argenta.router.exceptions import (RepeatedFlagNameException,
-                                 TooManyTransferredArgsException,
-                                 RequiredArgumentNotPassedException,
-                                 IncorrectNumberOfHandlerArgsException,
-                                 TriggerCannotContainSpacesException)
+                                     TooManyTransferredArgsException,
+                                     RequiredArgumentNotPassedException,
+                                     IncorrectNumberOfHandlerArgsException,
+                                     TriggerCannotContainSpacesException)
 
 
 class Router:
     def __init__(self,
                  title: str = 'Commands group title:',
                  name: str = 'Default'):
-
         self._title = title
         self._name = name
 
@@ -48,9 +48,9 @@ class Router:
             self._not_valid_flag_handler = func
 
 
-    def input_command_handler(self, input_command: Command):
+    def input_command_handler(self, input_command: InputCommand):
         input_command_name: str = input_command.get_trigger()
-        input_command_flags: FlagsGroup = input_command.get_input_flags()
+        input_command_flags: InputFlags = input_command.get_input_flags()
         for command_handler in self._command_handlers:
             handle_command = command_handler.get_handled_command()
             if input_command_name.lower() == handle_command.get_trigger().lower():
@@ -61,7 +61,7 @@ class Router:
                             if not is_valid:
                                 self._not_valid_flag_handler(flag)
                                 return
-                        command_handler.handling(input_command_flags.unparse_to_dict())
+                        command_handler.handling(input_command_flags)
                         return
                     else:
                         command_handler.handling({})
@@ -81,7 +81,7 @@ class Router:
         if command_name.find(' ') != -1:
             raise TriggerCannotContainSpacesException()
 
-        flags: FlagsGroup = command.get_registered_flags()
+        flags: Flags = command.get_registered_flags()
         if flags:
             flags_name: list = [x.get_string_entity().lower() for x in flags]
             if len(set(flags_name)) < len(flags_name):
@@ -92,12 +92,12 @@ class Router:
     def _validate_func_args(command: Command, func: Callable):
         registered_args = command.get_registered_flags()
         transferred_args = getfullargspec(func).args
-        if registered_args and transferred_args:
+        if registered_args.get_flags() and transferred_args:
            if len(transferred_args) != 1:
                 raise TooManyTransferredArgsException()
-        elif registered_args and not transferred_args:
+        elif registered_args.get_flags() and not transferred_args:
             raise RequiredArgumentNotPassedException()
-        elif not registered_args and transferred_args:
+        elif not registered_args.get_flags() and transferred_args:
             raise TooManyTransferredArgsException()
 
 
diff --git a/mock/mock_app/handlers/routers.py b/mock/mock_app/handlers/routers.py
index 3c46efc..4336245 100644
--- a/mock/mock_app/handlers/routers.py
+++ b/mock/mock_app/handlers/routers.py
@@ -2,8 +2,8 @@ from pprint import pprint
 from rich.console import Console
 
 from argenta.command import Command
-from argenta.command.flag.registered_flag import FlagsGroup
-from argenta.command.flag.registered_flag.defaults import DefaultFlags
+from argenta.command.flag.models import Flags, InputFlags
+from argenta.command.flag.defaults import DefaultFlags
 from argenta.router import Router
 from .handlers_implementation.help_command import help_command
 
@@ -22,8 +22,8 @@ def command_help():
     help_command()
 
 
-@work_router.command(Command(trigger='P', description='Start Solving', flags=FlagsGroup(DefaultFlags.HOST, DefaultFlags.PORT)))
-def command_start_solving(args: dict):
+@work_router.command(Command(trigger='P', description='Start Solving', flags=Flags(DefaultFlags.HOST, DefaultFlags.PORT)))
+def command_start_solving(args: InputFlags):
     print('Solving...')
     pprint(args)
     #start_solving_command()
diff --git a/tests/system_tests/test_system_handling_non_standard_behavior.py b/tests/system_tests/test_system_handling_non_standard_behavior.py
index ee573a3..541a671 100644
--- a/tests/system_tests/test_system_handling_non_standard_behavior.py
+++ b/tests/system_tests/test_system_handling_non_standard_behavior.py
@@ -7,8 +7,8 @@ import re
 from argenta.app import App
 from argenta.command import Command
 from argenta.router import Router
-from argenta.command.flag.registered_flag import FlagsGroup
-from argenta.command.flag.registered_flag.defaults import DefaultFlags
+from argenta.command.flag.models import Flags
+from argenta.command.flag.defaults import DefaultFlags
 
 
 
@@ -64,7 +64,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn('\nUndefined or incorrect input registered_flag: --help\n', output)
+        self.assertIn('\nUndefined or incorrect input flag: --help\n', output)
 
 
     @patch("builtins.input", side_effect=["test --port 22", "q"])
@@ -82,14 +82,14 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn('\nUndefined or incorrect input registered_flag: --port 22\n', output)
+        self.assertIn('\nUndefined or incorrect input flag: --port 22\n', output)
 
 
     @patch("builtins.input", side_effect=["test --host 192.168.32.1 --port 132", "q"])
     @patch("sys.stdout", new_callable=io.StringIO)
     def test_input_correct_command_with_one_correct_flag_an_one_incorrect_flag(self, mock_stdout: _io.StringIO, magick_mock: MagicMock):
         router = Router()
-        flags = FlagsGroup(DefaultFlags.HOST)
+        flags = Flags(DefaultFlags.HOST)
 
         @router.command(Command('test', flags=flags))
         def test(args: dict):
@@ -101,7 +101,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn('\nUndefined or incorrect input registered_flag: --port 132\n', output)
+        self.assertIn('\nUndefined or incorrect input flag: --port 132\n', output)
 
 
     @patch("builtins.input", side_effect=["test", "some", "q"])
@@ -159,7 +159,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn("\nIncorrect registered_flag syntax: \"test 535 --port\"\n", output)
+        self.assertIn("\nIncorrect flag syntax: \"test 535 --port\"\n", output)
 
 
     @patch("builtins.input", side_effect=["", "q"])
diff --git a/tests/system_tests/test_system_handling_normal_behavior.py b/tests/system_tests/test_system_handling_normal_behavior.py
index 5114f27..1e94a7b 100644
--- a/tests/system_tests/test_system_handling_normal_behavior.py
+++ b/tests/system_tests/test_system_handling_normal_behavior.py
@@ -5,10 +5,10 @@ import io
 import re
 
 from argenta.app import App
-from argenta.command import Command
+from argenta.command.models import Command
 from argenta.router import Router
-from argenta.command.flag.registered_flag import Flag, FlagsGroup
-from argenta.command.flag.registered_flag.defaults import DefaultFlags
+from argenta.command.flag.models import Flag, Flags, InputFlags
+from argenta.command.flag.defaults import DefaultFlags
 
 
 
@@ -56,8 +56,8 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
         flag = Flag('help', '--', False)
 
         @router.command(Command('test', flags=flag))
-        def test(args: dict):
-            print(f'\nhelp for {args['help']['name']} registered_flag\n')
+        def test(args: InputFlags):
+            print(f'\nhelp for {args.get_flag('help').get_name()} flag\n')
 
         app = App()
         app.include_router(router)
@@ -65,7 +65,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn('\nhelp for help registered_flag\n', output)
+        self.assertIn('\nhelp for help flag\n', output)
 
     @patch("builtins.input", side_effect=["test --port 22", "q"])
     @patch("sys.stdout", new_callable=io.StringIO)
@@ -74,8 +74,8 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
         flag = Flag('port', '--', re.compile(r'^\d{1,5}$'))
 
         @router.command(Command('test', flags=flag))
-        def test(args: dict):
-            print(f'registered_flag value for {args['port']['name']} registered_flag : {args["port"]["value"]}')
+        def test(args: InputFlags):
+            print(f'flag value for {args.get_flag('port').get_name()} flag : {args.get_flag('port').get_value()}')
 
         app = App()
         app.include_router(router)
@@ -83,7 +83,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn('\nregistered_flag value for port registered_flag : 22\n', output)
+        self.assertIn('\nflag value for port flag : 22\n', output)
 
 
     @patch("builtins.input", side_effect=["test -h", "q"])
@@ -94,7 +94,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         @router.command(Command('test', flags=flag))
         def test(args: dict):
-            print(f'help for {args['h']['name']} registered_flag')
+            print(f'help for {args[0].get_name()} flag')
 
         app = App()
         app.include_router(router)
@@ -102,7 +102,7 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
 
         output = mock_stdout.getvalue()
 
-        self.assertIn('\nhelp for h registered_flag\n', output)
+        self.assertIn('\nhelp for h flag\n', output)
 
 
     @patch("builtins.input", side_effect=["test --info", "q"])
@@ -112,8 +112,8 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
         flag = DefaultFlags.INFO
 
         @router.command(Command('test', flags=flag))
-        def test(args: dict):
-            if args.get('info'):
+        def test(args: InputFlags):
+            if args.get_flag('info'):
                 print('info about test command')
 
         app = App()
@@ -132,8 +132,8 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
         flag = DefaultFlags.HOST
 
         @router.command(Command('test', flags=flag))
-        def test(args: dict):
-            print(f'connecting to host {args["host"]["value"]}')
+        def test(args: InputFlags):
+            print(f'connecting to host {args[0].get_value()}')
 
         app = App()
         app.include_router(router)
@@ -148,11 +148,11 @@ class TestSystemHandlerNormalWork(unittest.TestCase):
     @patch("sys.stdout", new_callable=io.StringIO)
     def test_input_correct_command_with_two_flags(self, mock_stdout: _io.StringIO, magick_mock: MagicMock):
         router = Router()
-        flags = FlagsGroup(DefaultFlags.HOST, DefaultFlags.PORT)
+        flags = Flags(DefaultFlags.HOST, DefaultFlags.PORT)
 
         @router.command(Command('test', flags=flags))
-        def test(args: dict):
-            print(f'connecting to host {args["host"]["value"]} and port {args["port"]["value"]}')
+        def test(args: InputFlags):
+            print(f'connecting to host {args[0].get_value()} and port {args[1].get_value()}')
 
         app = App()
         app.include_router(router)
diff --git a/tests/unit_tests/test_command.py b/tests/unit_tests/test_command.py
index b3b0870..24cba7e 100644
--- a/tests/unit_tests/test_command.py
+++ b/tests/unit_tests/test_command.py
@@ -1,4 +1,4 @@
-from argenta.command import Command
+from argenta.command.models import InputCommand
 from argenta.command.exceptions import (UnprocessedInputFlagException,
                                         RepeatedInputFlagsException,
                                         EmptyInputCommandException)
@@ -6,22 +6,19 @@ from argenta.command.exceptions import (UnprocessedInputFlagException,
 import unittest
 
 
-class TestCommand(unittest.TestCase):
+class TestInputCommand(unittest.TestCase):
     def test_parse_correct_raw_command(self):
-        self.assertEqual(Command.parse_input_command('ssh --host 192.168.0.3').get_trigger(), 'ssh')
+        self.assertEqual(InputCommand.parse_input_command('ssh --host 192.168.0.3').get_trigger(), 'ssh')
 
     def test_parse_raw_command_without_flag_name_with_value(self):
         with self.assertRaises(UnprocessedInputFlagException):
-            Command.parse_input_command('ssh 192.168.0.3')
+            InputCommand.parse_input_command('ssh 192.168.0.3')
 
     def test_parse_raw_command_with_repeated_flag_name(self):
         with self.assertRaises(RepeatedInputFlagsException):
-            Command.parse_input_command('ssh --host 192.168.0.3 --host 172.198.0.43')
+            InputCommand.parse_input_command('ssh --host 192.168.0.3 --host 172.198.0.43')
 
     def test_parse_empty_raw_command(self):
         with self.assertRaises(EmptyInputCommandException):
-            Command.parse_input_command('')
-
-    def test_get_command_description(self):
-        self.assertEqual(Command(trigger='test', description='test description').get_description(), 'test description')
+            InputCommand.parse_input_command('')
 
diff --git a/tests/unit_tests/test_flag.py b/tests/unit_tests/test_flag.py
index 0995c9c..414a30d 100644
--- a/tests/unit_tests/test_flag.py
+++ b/tests/unit_tests/test_flag.py
@@ -1,4 +1,4 @@
-from argenta.command.flag.registered_flag import Flag
+from argenta.command.flag.models import Flag, InputFlag
 
 import unittest
 import re
@@ -6,66 +6,66 @@ import re
 
 class TestFlag(unittest.TestCase):
     def test_get_string_entity(self):
-        self.assertEqual(Flag(flag_name='test').get_string_entity(),
+        self.assertEqual(Flag(name='test').get_string_entity(),
                          '--test')
 
     def test_get_string_entity2(self):
-        self.assertEqual(Flag(flag_name='test',
-                              flag_prefix='---').get_string_entity(),
+        self.assertEqual(Flag(name='test',
+                              prefix='---').get_string_entity(),
                          '---test')
 
     def test_get_flag_name(self):
-        self.assertEqual(Flag(flag_name='test').get_flag_name(),
+        self.assertEqual(Flag(name='test').get_name(),
                          'test')
 
     def test_get_flag_prefix(self):
-        self.assertEqual(Flag(flag_name='test').get_flag_prefix(),
+        self.assertEqual(Flag(name='test').get_prefix(),
                          '--')
 
     def test_get_flag_prefix2(self):
-        self.assertEqual(Flag(flag_name='test',
-                              flag_prefix='--').get_flag_prefix(),
+        self.assertEqual(Flag(name='test',
+                              prefix='--').get_prefix(),
                          '--')
 
     def test_get_flag_value_without_set(self):
-        self.assertEqual(Flag(flag_name='test').get_value(),
+        self.assertEqual(InputFlag(name='test').get_value(),
                          None)
 
     def test_get_flag_value_with_set(self):
-        flag = Flag(flag_name='test')
+        flag = InputFlag(name='test')
         flag.set_value('example')
         self.assertEqual(flag.get_value(), 'example')
 
     def test_validate_incorrect_flag_value_with_list_of_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=['1', '2', '3'])
+        flag = Flag(name='test', possible_values=['1', '2', '3'])
         self.assertEqual(flag.validate_input_flag_value('bad value'), False)
 
     def test_validate_correct_flag_value_with_list_of_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=['1', '2', '3'])
+        flag = Flag(name='test', possible_values=['1', '2', '3'])
         self.assertEqual(flag.validate_input_flag_value('1'), True)
 
     def test_validate_incorrect_flag_value_with_pattern_of_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=re.compile(r'192.168.\d+.\d+'))
+        flag = Flag(name='test', possible_values=re.compile(r'192.168.\d+.\d+'))
         self.assertEqual(flag.validate_input_flag_value('152.123.9.8'), False)
 
     def test_validate_correct_flag_value_with_pattern_of_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=re.compile(r'192.168.\d+.\d+'))
+        flag = Flag(name='test', possible_values=re.compile(r'192.168.\d+.\d+'))
         self.assertEqual(flag.validate_input_flag_value('192.168.9.8'), True)
 
     def test_validate_correct_empty_flag_value_without_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=False)
+        flag = Flag(name='test', possible_values=False)
         self.assertEqual(flag.validate_input_flag_value(None), True)
 
     def test_validate_correct_empty_flag_value_with_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=True)
+        flag = Flag(name='test', possible_values=True)
         self.assertEqual(flag.validate_input_flag_value(None), True)
 
     def test_validate_incorrect_random_flag_value_without_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=False)
+        flag = Flag(name='test', possible_values=False)
         self.assertEqual(flag.validate_input_flag_value('random value'), False)
 
     def test_validate_correct_random_flag_value_with_possible_flag_values(self):
-        flag = Flag(flag_name='test', possible_flag_values=True)
+        flag = Flag(name='test', possible_values=True)
         self.assertEqual(flag.validate_input_flag_value('random value'), True)
 
 
diff --git a/tests/unit_tests/test_flagsgroup.py b/tests/unit_tests/test_flagsgroup.py
index 6393bbb..aeb2f81 100644
--- a/tests/unit_tests/test_flagsgroup.py
+++ b/tests/unit_tests/test_flagsgroup.py
@@ -1,11 +1,11 @@
-from argenta.command.flag.registered_flag import Flag, FlagsGroup
+from argenta.command.flag.models import Flag, Flags
 
 import unittest
 
 
-class TestFlagsGroup(unittest.TestCase):
+class TestFlags(unittest.TestCase):
     def test_get_flags(self):
-        flags = FlagsGroup()
+        flags = Flags()
         list_of_flags = [
             Flag('test1'),
             Flag('test2'),
@@ -16,34 +16,11 @@ class TestFlagsGroup(unittest.TestCase):
                          list_of_flags)
 
     def test_add_flag(self):
-        flags = FlagsGroup()
+        flags = Flags()
         flags.add_flag(Flag('test'))
         self.assertEqual(len(flags.get_flags()), 1)
 
     def test_add_flags(self):
-        flags = FlagsGroup()
+        flags = Flags()
         flags.add_flags([Flag('test'), Flag('test2')])
         self.assertEqual(len(flags.get_flags()), 2)
-
-    def test_unparse_flags_to_dict(self):
-        list_of_flags = [
-            Flag('test1'),
-            Flag('test2'),
-            Flag('test3'),
-        ]
-        flags = FlagsGroup(*list_of_flags)
-        serialized_flags = flags.unparse_to_dict()
-        needed_result = {'test1': {'name': 'test1',
-                                   'prefix': '--',
-                                   'string_entity': '--test1',
-                                   'value': None},
-                         'test2': {'name': 'test2',
-                                   'prefix': '--',
-                                   'string_entity': '--test2',
-                                   'value': None},
-                         'test3': {'name': 'test3',
-                                   'prefix': '--',
-                                   'string_entity': '--test3',
-                                   'value': None}}
-
-        self.assertDictEqual(serialized_flags, needed_result)