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# Extension commands API

Overview of all classes, functions, and other objects related to defining extension commands.

Read more on [Extensions](../../concepts/advanced/extensions).


::: django_components.CommandArg
    options:
      heading_level: 3
      show_if_no_docstring: true

::: django_components.CommandArgGroup
    options:
      heading_level: 3
      show_if_no_docstring: true

::: django_components.CommandHandler
    options:
      heading_level: 3
      show_if_no_docstring: true

::: django_components.CommandParserInput
    options:
      heading_level: 3
      show_if_no_docstring: true

::: django_components.CommandSubcommand
    options:
      heading_level: 3
      show_if_no_docstring: true

::: django_components.ComponentCommand
    options:
      heading_level: 3
      show_if_no_docstring: true