AudioFillerType
The audio filler identifier played during speech-to-speech interactions. Supported values include melody and typing variants such as MELODY_CHIPPER_CHIME, MELODY_CURIOUS_CRAWL, MELODY_RISING_RIPPLE, MELODY_PATIENT_PING, MELODY_PONDERING_PONG, TYPING_KINETIC_KEYS, and TYPING_QUIET_QWERTY.