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No public APIs are provided by this module. Internal use only.

This module implements dynamic tab-completion for any command that uses
twisted.python.usage. Currently, only zsh is supported. Bash support may
be added in the future.

Maintainer: Eric P. Mangold - twisted AT teratorn DOT org

In order for zsh completion to take place the shell must be able to find an
appropriate "stub" file ("completion function") that invokes this code and
displays the results to the user.

The stub used for Twisted commands is in the file C{twisted-completion.zsh},
which is also included in the official Zsh distribution at
C{Completion/Unix/Command/_twisted}. Use this file as a basis for completion
functions for your own commands. You should only need to change the first line
to something like C{#compdef mycommand}.

The main public documentation exists in the L{twisted.python.usage.Options}
docstring, the L{twisted.python.usage.Completions} docstring, and the
Options howto.
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    Perform shell completion.

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    @type words: C{list} of C{str}
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    @type options: L{twisted.python.usage.Options}
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