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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 _ProcessCommandSource(self, source):
 """Prepare a request for calling the execute command action."""

    action = standard.ExecuteCommandFromClient
    request = rdf_client_action.ExecuteRequest(
        cmd=source.base_source.attributes["cmd"],
        args=source.base_source.attributes["args"],
    )
    yield action, request