Get the trailing, multi-line description of this command.

        :returns:
            ``self.epilog``, if defined
        :returns:
            A substring of the class docstring between the string ``@EPILOG``
            and the end of the docstring, if defined
        :returns:
            None, otherwise

        The epilog is similar to the description string but it is instead
        printed after the section containing detailed descriptions of all of
        the command line arguments.

        Please consider following good practice by providing additional details
        about how the command can be used, perhaps an example or a reference to
        means of finding additional documentation.

def get_cmd_epilog(self):
        """
        Get the trailing, multi-line description of this command.

        :returns:
            ``self.epilog``, if defined
        :returns:
            A substring of the class docstring between the string ``@EPILOG``
            and the end of the docstring, if defined
        :returns:
            None, otherwise

        The epilog is similar to the description string but it is instead
        printed after the section containing detailed descriptions of all of
        the command line arguments.

        Please consider following good practice by providing additional details
        about how the command can be used, perhaps an example or a reference to
        means of finding additional documentation.
        """
        try:
            return self.source.epilog
        except AttributeError:
            pass
        try:
            return '\n'.join(
                get_localized_docstring(
                    self, self.get_gettext_domain()
                ).splitlines()[1:]
            ).split('@EPILOG@', 1)[1].strip()
        except (AttributeError, IndexError, ValueError):
            pass