How to use the flyteidl.core.tasks_pb2 function in flyteidl

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.tasks_pb2.RuntimeMetadata
        """
        return _core_task.RuntimeMetadata(
            type=self.type,
            version=self.version,
            flavor=self.flavor
        )

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.tasks_pb2.Container
        """
        return _core_task.Container(
            image=self.image,
            command=self.command,
            args=self.args,
            resources=self.resources.to_flyte_idl(),
            env=[_literals_pb2.KeyValuePair(key=k, value=v) for k, v in _six.iteritems(self.env)],
            config=[_literals_pb2.KeyValuePair(key=k, value=v) for k, v in _six.iteritems(self.config)]
        )

def to_flyte_idl(self):
        """
        :rtype: flyteidl.core.tasks_pb2.TaskTemplate
        """
        return _core_task.TaskTemplate(
            id=self.id.to_flyte_idl(),
            type=self.type,
            metadata=self.metadata.to_flyte_idl(),
            interface=self.interface.to_flyte_idl(),
            custom=_json_format.Parse(_json.dumps(self.custom), _struct.Struct()) if self.custom else None,
            container=self.container.to_flyte_idl() if self.container else None
        )

def to_flyte_idl(self):
        """
        :rtype: flyteidl.admin.task_pb2.TaskMetadata
        """
        tm = _core_task.TaskMetadata(
            discoverable=self.discoverable,
            runtime=self.runtime.to_flyte_idl(),
            retries=self.retries.to_flyte_idl(),
            interruptible=self.interruptible,
            discovery_version=self.discovery_version,
            deprecated_error_message=self.deprecated_error_message
        )
        tm.timeout.FromTimedelta(self.timeout)
        return tm