Bedrock Runtime > Structures > BidirectionalInputPayloadPart BidirectionalInputPayloadPart¶ Structure Class¶ BidirectionalInputPayloadPart dataclass ¶ Payload content for the bidirectional input. The input is an audio stream. Attributes¶ bytes_ class-attribute instance-attribute ¶ bytes_: bytes | None = field(repr=False, default=None) The audio content for the bidirectional input.