How to use the flyteidl.core.compiler_pb2 function in flyteidl

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.compiler_pb2.CompiledTask
        """
        return _compiler_pb2.CompiledTask(
            template=self.template  # TODO: .to_flyte_idl()
        )

def to_flyte_idl(self):
            """
            :rtype: flyteidl.core.compiler_pb2.ConnectionSet.IdList
            """
            return _compiler_pb2.ConnectionSet.IdList(ids=self.ids)

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.compiler_pb2.CompiledWorkflow
        """
        return _compiler_pb2.CompiledWorkflow(
            template=self.template.to_flyte_idl(),
            connections=self.connections.to_flyte_idl()
        )

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.compiler_pb2.ConnectionSet
        """
        return _compiler_pb2.ConnectionSet(
            upstream={k: v.to_flyte_idl() for k, v in _six.iteritems(self.upstream)},
            downstream={k: v.to_flyte_idl() for k, v in _six.iteritems(self.upstream)}
        )

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.compiler_pb2.CompiledTask
        """
        return _compiler.CompiledTask(
            template=self.template.to_flyte_idl()
        )