Sequencer response fifo

https://verificationacademy.com/cookbook/driver/sequence-api

1] “The use model for the uvm_driver class is that it consumes request (REQ) sequence_items from the sequencers request FIFO using a handshake communication mechanism, and optionally returns response (RSP) sequence_items to the sequencers response FIFO

2] item_done

“If it is passed no argument or a null pointer it will complete the handshake without placing anything in the sequencer’s response FIFO

Does sequencer have a response fifo or it is within the sequence , Can anyone confirm whether its a typo ?

Thanks In Adv

In reply to bl4ckp3rl :

Refer :: Response_FIFO