diff --git a/mock/local_test.py b/mock/local_test.py
index e672a5a..a9c4c13 100644
--- a/mock/local_test.py
+++ b/mock/local_test.py
@@ -1,5 +1,3 @@
-import argparse
+arg = '-repeat'
 
-parser = argparse.ArgumentParser(prog='myprogram')
-_ = parser.add_argument('--foo', help='foo of the %(prog)s program')
-parser.print_help()
\ No newline at end of file
+print(arg[:arg.rfind('-')+1])
\ No newline at end of file
diff --git a/mock/mock_app/main.py b/mock/mock_app/main.py
index 67cc55f..84664dd 100644
--- a/mock/mock_app/main.py
+++ b/mock/mock_app/main.py
@@ -3,25 +3,24 @@ from mock.mock_app.routers import work_router
 from argenta import App, Orchestrator
 from argenta.app import PredefinedMessages, DynamicDividingLine, AutoCompleter
 from argenta.orchestrator import ArgParser
-from argenta.orchestrator.argparser import BooleanArgument
+from argenta.orchestrator.argparser import BooleanArgument, ValueArgument
 
 
-arg_parser = ArgParser(processed_args=[BooleanArgument("repeat")])
+arg_parser: ArgParser = ArgParser(processed_args=[BooleanArgument(name="repeat", is_deprecated=True),
+                                                  ValueArgument(name="required", is_required=True)])
 app: App = App(
     dividing_line=DynamicDividingLine(),
     autocompleter=AutoCompleter(),
 )
-orchestrator: Orchestrator = Orchestrator(arg_parser)
-
+orchestrator: Orchestrator = Orchestrator()
 
 def main():
     app.include_router(work_router)
-    print(f"\n\n{orchestrator.get_input_args()}")
 
     app.add_message_on_startup(PredefinedMessages.USAGE)
     app.add_message_on_startup(PredefinedMessages.AUTOCOMPLETE)
     app.add_message_on_startup(PredefinedMessages.HELP)
-
+    
     orchestrator.start_polling(app)
 
 
diff --git a/mock/mock_app/routers.py b/mock/mock_app/routers.py
index 030fe51..5d36e1f 100644
--- a/mock/mock_app/routers.py
+++ b/mock/mock_app/routers.py
@@ -12,8 +12,9 @@ flag = Flag('csdv', possible_values=PossibleValues.NEITHER)
     Command("get",
         description="Get Help",
         aliases=["help", "Get_help"],
-        flags=Flags([PredefinedFlags.PORT,
-                     PredefinedFlags.HOST])))
+        flags=Flags([PredefinedFlags.PORT, PredefinedFlags.HOST])
+    )
+)
 def command_help(response: Response):
     print(response.status)
     print(response.input_flags.flags)
diff --git a/pyproject.toml b/pyproject.toml
index 6e0356a..b63175f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ license = { text = "MIT" }
 dependencies = [
     "rich (>=14.0.0,<15.0.0)",
     "art (>=6.4,<7.0)",
-    "pyreadline3>=3.5.4",
+    "pyreadline3>=3.5.4; sys_platform == 'win32'",
 ]
 
 [tool.ruff]
@@ -20,7 +20,10 @@ exclude = [
     "poetry.lock",
     ".__pycache__",
     "tests"
-    ]
+]
+
+[tool.pyright]
+typeCheckingMode = "strict"
 
 [build-system]
 requires = ["hatchling"]
diff --git a/src/argenta/__init__.py b/src/argenta/__init__.py
index 6498ca5..8f4f423 100644
--- a/src/argenta/__init__.py
+++ b/src/argenta/__init__.py
@@ -1,10 +1,5 @@
-__all__ = [
-    'App',
-    'Orchestrator',
-    'Router',
-]
+__all__ = ["App", "Orchestrator", "Router"]
 
 
-from argenta.app import App
-from argenta.orchestrator import Orchestrator
-from argenta.router import Router
+from argenta.orchestrator.entity import Orchestrator, App
+from argenta.router.entity import Router
diff --git a/src/argenta/app/models.py b/src/argenta/app/models.py
index 6c7da55..c8821dd 100644
--- a/src/argenta/app/models.py
+++ b/src/argenta/app/models.py
@@ -3,6 +3,7 @@ import re
 from contextlib import redirect_stdout
 from typing import Never, TypeAlias
 
+from argenta.orchestrator.argparser.entity import ArgSpace
 from art import text2art  # pyright: ignore[reportMissingTypeStubs, reportUnknownVariableType]
 from rich.console import Console
 from rich.markup import escape
@@ -41,7 +42,8 @@ class BaseApp:
                  repeat_command_groups: bool,
                  override_system_messages: bool,
                  autocompleter: AutoCompleter,
-                 print_func: Printer) -> None:
+                 print_func: Printer,
+                 argspace: ArgSpace | None = None) -> None:
         self._prompt: str = prompt
         self._print_func: Printer = print_func
         self._exit_command: Command = exit_command
@@ -51,6 +53,7 @@ class BaseApp:
         self._repeat_command_groups_description: bool = repeat_command_groups
         self._override_system_messages: bool = override_system_messages
         self._autocompleter: AutoCompleter = autocompleter
+        self._argspace: ArgSpace | None = argspace
 
         self._farewell_message: str = farewell_message
         self._initial_message: str = initial_message
@@ -392,11 +395,12 @@ class App(BaseApp):
             print_func=print_func,
         )
 
-    def run_polling(self) -> None:
+    def run_polling(self, argspace: ArgSpace | None) -> None:
         """
         Private. Starts the user input processing cycle
         :return: None
         """
+        self._argspace = argspace
         self._pre_cycle_setup()
         while True:
             if self._repeat_command_groups_description:
diff --git a/src/argenta/orchestrator/__init__.py b/src/argenta/orchestrator/__init__.py
index b658f94..b980d66 100644
--- a/src/argenta/orchestrator/__init__.py
+++ b/src/argenta/orchestrator/__init__.py
@@ -1,8 +1,4 @@
-__all__ = [
-    "Orchestrator",
-    "ArgParser"
-]
+__all__ = ["ArgParser", "Orchestrator"]
 
-
-from argenta.orchestrator.entity import Orchestrator
 from argenta.orchestrator.argparser.entity import ArgParser
+from argenta.orchestrator.entity import Orchestrator
diff --git a/src/argenta/orchestrator/argparser/__init__.py b/src/argenta/orchestrator/argparser/__init__.py
index 01d2f42..4f59581 100644
--- a/src/argenta/orchestrator/argparser/__init__.py
+++ b/src/argenta/orchestrator/argparser/__init__.py
@@ -1,12 +1,9 @@
 __all__ = [
     "ArgParser",
-    "PositionalArgument",
-    "OptionalArgument",
-    "BooleanArgument"
+    "BooleanArgument",
+    "ValueArgument"
 ]
 
 
 from argenta.orchestrator.argparser.entity import ArgParser
-from argenta.orchestrator.argparser.arguments import (BooleanArgument,
-                                                      PositionalArgument,
-                                                      OptionalArgument)
+from argenta.orchestrator.argparser.arguments import BooleanArgument, ValueArgument
diff --git a/src/argenta/orchestrator/argparser/arguments/__init__.py b/src/argenta/orchestrator/argparser/arguments/__init__.py
index 5b6270c..0308877 100644
--- a/src/argenta/orchestrator/argparser/arguments/__init__.py
+++ b/src/argenta/orchestrator/argparser/arguments/__init__.py
@@ -1,8 +1,8 @@
-__all__ = ["BooleanArgument", "PositionalArgument", "OptionalArgument"]
+__all__ = ["BooleanArgument", "ValueArgument", "InputArgument"]
 
 
 from argenta.orchestrator.argparser.arguments.models import (
     BooleanArgument,
-    PositionalArgument,
-    OptionalArgument,
+    ValueArgument,
+    InputArgument
 )
diff --git a/src/argenta/orchestrator/argparser/arguments/models.py b/src/argenta/orchestrator/argparser/arguments/models.py
index 1a74312..32d6f02 100644
--- a/src/argenta/orchestrator/argparser/arguments/models.py
+++ b/src/argenta/orchestrator/argparser/arguments/models.py
@@ -1,62 +1,82 @@
-from abc import ABC, abstractmethod
-from typing import Literal, override
+from typing import Literal
 
 
-class BaseArgument(ABC):
+class BaseArgument:
     """
     Private. Base class for all arguments
     """
-    @property
-    @abstractmethod
-    def string_entity(self) -> str:
-        """
-        Public. Returns the string representation of the argument
-        :return: the string representation as a str
-        """
-        raise NotImplementedError
-
-
-class PositionalArgument(BaseArgument):
-    def __init__(self, name: str):
-        """
-        Public. Required argument at startup
-        :param name: name of the argument, must not start with minus (-)
-        """
-        self.name: str = name
-
-    @property
-    @override
-    def string_entity(self) -> str:
-        return self.name
-
-
-class OptionalArgument(BaseArgument):
-    def __init__(self, name: str, prefix: Literal["-", "--", "---"] = "--"):
-        """
-        Public. Optional argument, must have the value
-        :param name: name of the argument
-        :param prefix: prefix of the argument
-        """
-        self.name: str = name
-        self.prefix: Literal["-", "--", "---"] = prefix
-
-    @property
-    @override
-    def string_entity(self) -> str:
-        return self.prefix + self.name
-
-
-class BooleanArgument(BaseArgument):
-    def __init__(self, name: str, prefix: Literal["-", "--", "---"] = "--"):
+    def __init__(self, name: str, *,
+                       help: str,
+                       is_deprecated: bool,
+                       prefix: Literal["-", "--", "---"]):
         """
         Public. Boolean argument, does not require a value
         :param name: name of the argument
-        :param prefix: prefix of the argument
+        :param help: help message for the argument
+        :param is_required: whether the argument is required
+        :param is_deprecated: whether the argument is deprecated
         """
         self.name: str = name
+        self.help: str = help
+        self.is_deprecated: bool = is_deprecated
         self.prefix: Literal["-", "--", "---"] = prefix
-
+        
     @property
-    @override
     def string_entity(self) -> str:
         return self.prefix + self.name
+
+
+class ValueArgument(BaseArgument):
+    def __init__(self, name: str, *,
+                prefix: Literal["-", "--", "---"] = "--",
+                help: str = "Help message for the value argument", 
+                possible_values: list[str] | None = None,
+                default: str | None = None,
+                is_required: bool = False,
+                is_deprecated: bool = False):
+        """
+        Public. Value argument, must have the value
+        :param name: name of the argument
+        :param prefix: prefix for the argument
+        :param help: help message for the argument
+        :param possible_values: list of possible values for the argument
+        :param default: default value for the argument
+        :param is_required: whether the argument is required
+        :param is_deprecated: whether the argument is deprecated
+        """
+        self.default: str | None = default
+        self.possible_values: list[str] | None = possible_values
+        self.is_required: bool = is_required
+        self.action: str = "store"
+        super().__init__(name, prefix=prefix, help=help, is_deprecated=is_deprecated)
+
+
+class BooleanArgument(BaseArgument):
+    def __init__(self, name: str, *,
+                prefix: Literal["-", "--", "---"] = "--",
+                help: str = "Help message for the boolean argument",
+                is_deprecated: bool = False):
+        """
+        Public. Boolean argument, does not require a value
+        :param name: name of the argument
+        :param help: help message for the argument
+        :param is_required: whether the argument is required
+        :param is_deprecated: whether the argument is deprecated
+        """
+        self.action: str = "store_true"
+        super().__init__(name, prefix=prefix, help=help, is_deprecated=is_deprecated)
+
+
+class InputArgument:
+    def __init__(self, name: str,
+                       value: str | None,
+                       founder_class: type[BaseArgument]) -> None:
+        self.name: str = name
+        self.value: str | None = value
+        self.founder_class: type[BaseArgument] = founder_class
+    
+    def __str__(self) -> str:
+        return f"InputArgument({self.name}={self.value})"
+       
+    def __repr__(self) -> str:
+        return f"InputArgument<name={self.name}, value={self.value}, founder_class={self.founder_class.__name__}>"
diff --git a/src/argenta/orchestrator/argparser/entity.py b/src/argenta/orchestrator/argparser/entity.py
index 5c3f29d..b49e426 100644
--- a/src/argenta/orchestrator/argparser/entity.py
+++ b/src/argenta/orchestrator/argparser/entity.py
@@ -1,16 +1,44 @@
 from argparse import ArgumentParser, Namespace
+from typing import Never, Self
 
 from argenta.orchestrator.argparser.arguments.models import (
+    BaseArgument,
     BooleanArgument,
-    OptionalArgument,
-    PositionalArgument,
+    InputArgument,
+    ValueArgument
 )
 
+        
+class ArgSpace:
+    def __init__(self, all_arguments: list[InputArgument]) -> None:
+        self.all_arguments = all_arguments
+    
+    @classmethod
+    def from_namespace(cls, namespace: Namespace, 
+                            processed_args: list[ValueArgument | BooleanArgument]) -> Self:
+        name_type_paired_args: dict[str, type[BaseArgument]] = {
+            arg.name: type(arg)
+            for arg in processed_args   
+        }
+        return cls([InputArgument(name=name, 
+                                  value=value, 
+                                  founder_class=name_type_paired_args[name]) 
+                    for name, value in vars(namespace).items()])
+        
+    def get_by_name(self, name: str) -> InputArgument | None:
+        for arg in self.all_arguments:
+            if arg.name == name:
+                return arg
+        return None
+        
+    def get_by_type(self, arg_type: type[BaseArgument]) -> list[InputArgument] | list[Never]:
+        return [arg for arg in self.all_arguments if arg.founder_class is arg_type]
+        
 
 class ArgParser:
     def __init__(
         self,
-        processed_args: list[PositionalArgument | OptionalArgument | BooleanArgument], *,
+        processed_args: list[ValueArgument | BooleanArgument], *,
         name: str = "Argenta",
         description: str = "Argenta available arguments",
         epilog: str = "github.com/koloideal/Argenta | made by kolo",
@@ -22,18 +50,29 @@ class ArgParser:
         :param epilog: the epilog of the ArgParse instance
         :param processed_args: registered and processed arguments
         """
-        self._name: str = name
-        self._description: str = description
-        self._epilog: str = epilog
+        self.name: str = name
+        self.description: str = description
+        self.epilog: str = epilog
+        self.processed_args: list[ValueArgument | BooleanArgument] = processed_args
 
-        self._entity: ArgumentParser = ArgumentParser(prog=name, description=description, epilog=epilog)
-        self._processed_args: list[PositionalArgument | OptionalArgument | BooleanArgument] = processed_args
+        self._core: ArgumentParser = ArgumentParser(prog=name, description=description, epilog=epilog)
         
         for arg in processed_args:
-            if isinstance(arg, PositionalArgument) or isinstance(arg, OptionalArgument):
-                _ = self._entity.add_argument(arg.string_entity)
-            else: 
-                _ = self._entity.add_argument(arg.string_entity, action="store_true")
+            if isinstance(arg, BooleanArgument):
+                _ = self._core.add_argument(arg.string_entity,    
+                                            action=arg.action,
+                                            help=arg.help,
+                                            deprecated=arg.is_deprecated)
+            else:
+                _ = self._core.add_argument(arg.string_entity,    
+                                            action=arg.action,
+                                            help=arg.help,
+                                            default=arg.default,
+                                            choices=arg.possible_values,
+                                            required=arg.is_required,
+                                            deprecated=arg.is_deprecated)
 
-    def parse_args(self) -> Namespace:
-        return self._entity.parse_args()
+    def parse_args(self) -> ArgSpace:
+        return ArgSpace.from_namespace(namespace=self._core.parse_args(),
+                                       processed_args=self.processed_args)
+        
\ No newline at end of file
diff --git a/src/argenta/orchestrator/entity.py b/src/argenta/orchestrator/entity.py
index ff73623..3e7143e 100644
--- a/src/argenta/orchestrator/entity.py
+++ b/src/argenta/orchestrator/entity.py
@@ -1,17 +1,19 @@
-from argparse import Namespace
-
-from argenta.app import App
+from argenta.app.models import App
 from argenta.orchestrator.argparser import ArgParser
+from argenta.orchestrator.argparser.entity import ArgSpace
+
+
+DEFAULT_ARGPARSER: ArgParser = ArgParser(processed_args=[])
 
 
 class Orchestrator:
-    def __init__(self, arg_parser: ArgParser | None = None):
+    def __init__(self, arg_parser: ArgParser = DEFAULT_ARGPARSER):
         """
         Public. An orchestrator and configurator that defines the behavior of an integrated system, one level higher than the App
         :param arg_parser: Cmd argument parser and configurator at startup
         :return: None
         """
-        self._arg_parser: ArgParser | None = arg_parser
+        self._arg_parser: ArgParser = arg_parser
 
     def start_polling(self, app: App) -> None:
         """
@@ -19,14 +21,5 @@ class Orchestrator:
         :param app: a running application
         :return: None
         """
-        app.run_polling()
-
-    def get_input_args(self) -> Namespace | None:
-        """
-        Public. Returns the arguments parsed
-        :return: None
-        """
-        if self._arg_parser:
-            return self._arg_parser.parse_args()
-        else:
-            return None
+        parsed_argspace: ArgSpace = self._arg_parser.parse_args()
+        app.run_polling(argspace=parsed_argspace)
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 67ba794..f711575 100644
--- a/tests/system_tests/test_system_handling_non_standard_behavior.py
+++ b/tests/system_tests/test_system_handling_non_standard_behavior.py
@@ -3,18 +3,24 @@ from unittest.mock import patch, MagicMock
 from unittest import TestCase
 import io
 import re
+import sys
 
-from argenta.app import App
 from argenta.command import Command, PredefinedFlags
 from argenta.command.flag.models import ValidationStatus
-from argenta.router import Router
 from argenta.command.flag.flags.models import Flags
-from argenta.orchestrator import Orchestrator
+from argenta import Orchestrator, App, Router
 from argenta.response import Response
 
 
+class PatchedArgvTestCase(TestCase):
+    def setUp(self):
+        super().setUp()
+        self.patcher = patch.object(sys, 'argv', ['program.py'])
+        self.mock_argv = self.patcher.start()
+        self.addCleanup(self.patcher.stop)
 
-class TestSystemHandlerNormalWork(TestCase):
+
+class TestSystemHandlerNormalWork(PatchedArgvTestCase):
     @patch("builtins.input", side_effect=["help", "q"])
     @patch("sys.stdout", new_callable=io.StringIO)
     def test_input_incorrect_command(self, mock_stdout: _io.StringIO, magick_mock: MagicMock):
diff --git a/tests/system_tests/test_system_handling_normal_behavior.py b/tests/system_tests/test_system_handling_normal_behavior.py
index 29fa790..f2f5a7b 100644
--- a/tests/system_tests/test_system_handling_normal_behavior.py
+++ b/tests/system_tests/test_system_handling_normal_behavior.py
@@ -3,19 +3,25 @@ from unittest.mock import patch, MagicMock
 from unittest import TestCase
 import io
 import re
+import sys
 
-from argenta.app import App
 from argenta.command import Command, PredefinedFlags
 from argenta.command.flag.models import PossibleValues, ValidationStatus
 from argenta.response import Response
-from argenta.router import Router
-from argenta.orchestrator import Orchestrator
+from argenta import Orchestrator, App, Router
 from argenta.command.flag import Flag
 from argenta.command.flag.flags import Flags
 
 
+class PatchedArgvTestCase(TestCase):
+    def setUp(self):
+        super().setUp()
+        self.patcher = patch.object(sys, 'argv', ['program.py'])
+        self.mock_argv = self.patcher.start()
+        self.addCleanup(self.patcher.stop)
 
-class TestSystemHandlerNormalWork(TestCase):
+
+class TestSystemHandlerNormalWork(PatchedArgvTestCase):
     @patch("builtins.input", side_effect=["test", "q"])
     @patch("sys.stdout", new_callable=io.StringIO)
     def test_input_correct_command(self, mock_stdout: _io.StringIO, magick_mock: MagicMock):
diff --git a/tests/unit_tests/test_argparser.py b/tests/unit_tests/test_argparser.py
new file mode 100644
index 0000000..da86049
--- /dev/null
+++ b/tests/unit_tests/test_argparser.py
@@ -0,0 +1,164 @@
+import unittest
+from unittest.mock import MagicMock, patch
+from argparse import Namespace
+
+from argenta.orchestrator.argparser.entity import ArgParser, ArgSpace
+from argenta.orchestrator.argparser.arguments.models import (
+    ValueArgument,
+    BooleanArgument,
+    InputArgument,
+    BaseArgument
+)
+
+
+class TestArgumentClasses(unittest.TestCase):
+    def test_value_argument_creation(self):
+        arg = ValueArgument(
+            name="test_arg",
+            prefix="--",
+            help="A test argument.",
+            possible_values=["one", "two"],
+            default="one",
+            is_required=True,
+            is_deprecated=False
+        )
+        self.assertEqual(arg.name, "test_arg")
+        self.assertEqual(arg.prefix, "--")
+        self.assertEqual(arg.help, "A test argument.")
+        self.assertEqual(arg.possible_values, ["one", "two"])
+        self.assertEqual(arg.default, "one")
+        self.assertTrue(arg.is_required)
+        self.assertFalse(arg.is_deprecated)
+        self.assertEqual(arg.action, "store")
+        self.assertEqual(arg.string_entity, "--test_arg")
+
+    def test_boolean_argument_creation(self):
+        arg = BooleanArgument(
+            name="verbose",
+            prefix="-",
+            help="Enable verbose mode.",
+            is_deprecated=True
+        )
+        self.assertEqual(arg.name, "verbose")
+        self.assertEqual(arg.prefix, "-")
+        self.assertEqual(arg.help, "Enable verbose mode.")
+        self.assertTrue(arg.is_deprecated)
+        self.assertEqual(arg.action, "store_true")
+        self.assertEqual(arg.string_entity, "-verbose")
+
+    def test_input_argument_creation(self):
+        arg = InputArgument(
+            name="file",
+            value="/path/to/file",
+            founder_class=ValueArgument
+        )
+        self.assertEqual(arg.name, "file")
+        self.assertEqual(arg.value, "/path/to/file")
+        self.assertEqual(arg.founder_class, ValueArgument)
+
+
+class TestArgParser(unittest.TestCase):
+    def setUp(self):
+        self.value_arg = ValueArgument(name="config", help="Path to config file")
+        self.bool_arg = BooleanArgument(name="debug", help="Enable debug mode")
+        self.processed_args = [self.value_arg, self.bool_arg]
+
+    def test_argparser_initialization(self):
+        parser = ArgParser(
+            processed_args=self.processed_args,
+            name="TestApp",
+            description="A test application.",
+            epilog="Test epilog."
+        )
+        self.assertEqual(parser.name, "TestApp")
+        self.assertEqual(parser.description, "A test application.")
+        self.assertEqual(parser.epilog, "Test epilog.")
+        self.assertEqual(parser.processed_args, self.processed_args)
+
+    @patch('argenta.orchestrator.argparser.entity.ArgumentParser.parse_args')
+    def test_parse_args(self, mock_parse_args: MagicMock):
+        mock_namespace = Namespace(config='config.json', debug=True)
+        mock_parse_args.return_value = mock_namespace
+
+        parser = ArgParser(processed_args=self.processed_args)
+        arg_space = parser.parse_args()
+
+        self.assertIsInstance(arg_space, ArgSpace)
+        self.assertEqual(len(arg_space.all_arguments), 2)
+
+        config_arg = arg_space.get_by_name('config')
+        debug_arg = arg_space.get_by_name('debug')
+
+        self.assertIsNotNone(config_arg)
+        if config_arg:
+            self.assertEqual(config_arg.value, 'config.json')
+            self.assertEqual(config_arg.founder_class, ValueArgument)
+
+        self.assertIsNotNone(debug_arg)
+        if debug_arg:
+            self.assertTrue(debug_arg.value)
+            self.assertEqual(debug_arg.founder_class, BooleanArgument)
+
+
+class TestArgSpace(unittest.TestCase):
+    def setUp(self):
+        self.input_arg1 = InputArgument(name="arg1", value="val1", founder_class=ValueArgument)
+        self.input_arg2 = InputArgument(name="arg2", value="val2", founder_class=BooleanArgument)
+        self.input_arg3 = InputArgument(name="arg3", value="val3", founder_class=ValueArgument)
+        self.arg_space = ArgSpace(all_arguments=[self.input_arg1, self.input_arg2, self.input_arg3])
+
+    def test_argspace_initialization(self):
+        self.assertEqual(len(self.arg_space.all_arguments), 3)
+        self.assertIn(self.input_arg1, self.arg_space.all_arguments)
+        self.assertIn(self.input_arg2, self.arg_space.all_arguments)
+        self.assertIn(self.input_arg3, self.arg_space.all_arguments)
+
+    def test_get_by_name(self):
+        found_arg = self.arg_space.get_by_name("arg1")
+        self.assertIsNotNone(found_arg)
+        if found_arg:
+            self.assertEqual(found_arg, self.input_arg1)
+
+    def test_get_by_name_not_found(self):
+        found_arg = self.arg_space.get_by_name("non_existent_arg")
+        self.assertIsNone(found_arg)
+
+    def test_get_by_type(self):
+        value_args = self.arg_space.get_by_type(ValueArgument)
+        self.assertEqual(len(value_args), 2)
+        self.assertIn(self.input_arg1, value_args)
+        self.assertIn(self.input_arg3, value_args)
+
+        bool_args = self.arg_space.get_by_type(BooleanArgument)
+        self.assertEqual(len(bool_args), 1)
+        self.assertIn(self.input_arg2, bool_args)
+
+    def test_get_by_type_not_found(self):
+        class OtherArgument(BaseArgument):
+            pass
+
+        other_args = self.arg_space.get_by_type(OtherArgument)
+        self.assertEqual(len(other_args), 0)
+
+    def test_from_namespace(self):
+        namespace = Namespace(arg1="val1", debug=True)
+        processed_args = [
+            ValueArgument(name="arg1", prefix="--"),
+            BooleanArgument(name="debug", prefix="-")
+        ]
+
+        arg_space = ArgSpace.from_namespace(namespace, processed_args)
+        self.assertEqual(len(arg_space.all_arguments), 2)
+
+        arg1 = arg_space.get_by_name('arg1')
+        debug_arg = arg_space.get_by_name('debug')
+
+        self.assertIsNotNone(arg1)
+        if arg1:
+            self.assertEqual(arg1.value, "val1")
+            self.assertEqual(arg1.founder_class, ValueArgument)
+
+        self.assertIsNotNone(debug_arg)
+        if debug_arg:
+            self.assertTrue(debug_arg.value)
+            self.assertEqual(debug_arg.founder_class, BooleanArgument)