[F] getAvailabilityMapInTimeline
function getAvailabilityMapInTimeline(   program,   type,   timeline):  | undefined| Map<TimelineMoment, Availability>Parameters
| Parameter | Type | 
|---|---|
program | Program | 
type | Type | 
timeline | VersioningTimeline | 
Returns
| undefined
| Map<TimelineMoment, Availability>