Recording

The Recording object.

Field	Type	Description
`audio_channels`	object	Who is on each channel of the stereo file: the caller left, the agent right.
`content_type`	string
`conversation_id`	string (uuid)
`duration_seconds`	number or null
`expires_at`	string (date-time)
`object`	`recording`
`url`	string	A link to the audio. It stops working at `expires_at`.