niryo_libraries.message_filters

package documentation

From __init__.py:

Class ApproximateTimeSynchronizer Approximately synchronizes messages by their timestamps.
Class Cache Stores a time history of messages.
Class SimpleFilter No class docstring; 0/1 instance variable, 1/3 method documented
Class Subscriber ROS subscription filter. Identical arguments as rospy.Subscriber.
Class TimeSynchronizer Synchronizes messages by their timestamps.