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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)