Lei Liu

Fix race condition between cleanup in executor shutdown and _wait_for…

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(Edit by @fujitatomoya ) …_ready_callbacks. Signed-off-by: Lei Liu address https://github.com/ros2/rclpy/issues/968

Fix SharedFuture from async_send_request never becomes valid

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Signed-off-by: Lei Liu

add methods for batching delacare parameters.(#1970)

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address a part of https://github.com/ros2/rclcpp/issues/1970 Signed-off-by: Lei Liu

Add loaned message listener.

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Signed-off-by: Lei Liu

Add yaml tag full support.

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Signed-off-by: Lei Liu