Push a plugin to the registry.

            Args:
                name (string): Name of the plugin to upload. The ``:latest``
                    tag is optional, and is the default if omitted.

            Returns:
                ``True`` if successful

def push_plugin(self, name):
        """
            Push a plugin to the registry.

            Args:
                name (string): Name of the plugin to upload. The ``:latest``
                    tag is optional, and is the default if omitted.

            Returns:
                ``True`` if successful
        """
        url = self._url('/plugins/{0}/pull', name)

        headers = {}
        registry, repo_name = auth.resolve_repository_name(name)
        header = auth.get_config_header(self, registry)
        if header:
            headers['X-Registry-Auth'] = header
        res = self._post(url, headers=headers)
        self._raise_for_status(res)
        return self._stream_helper(res, decode=True)