# Functions
NewFeedbackAdapter returns a new FeedbackAdapter.
# Constants
TwccExtensionAttributesKey identifies the TWCC value in the attribute collection so we don't need to reparse.
# Structs
Acknowledgment holds information about a packet and if/when it has been sent/received.
FeedbackAdapter converts incoming RTCP Packets (TWCC and RFC8888) into Acknowledgments.