bmp_consumer imports the Router module from openbmp.api.parsed.message. A Router object is created and the getRowMap() method is called - but the such a method is not defined in the Router class.

Router class - https://github.com/OpenBMP/openbmp-python-api-message/blob/master/src/openbmp/api/parsed/message/Router.py

Router object calling getRowMap:
https://github.com/OpenBMP/openbmp-mrt/blob/master/src/site-packages/openbmp/mrt/bmp_consumer.py#L169

Similarly for the Collector object:
https://github.com/OpenBMP/openbmp-mrt/blob/master/src/site-packages/openbmp/mrt/bmp_consumer.py#L143