parameters: (self)
return_statement: return self.meta.id
docstring: The compound primary key for a message is message_id.
docstring_summary: The compound primary key for a message is message_id.
docstring_tokens: The compound primary key for a message is message_id .
function: def message_id(self):
          """The compound primary key for a message is message_id."""
          return self.meta.id
function_tokens: def message_id ( self ) : return self . meta . id