[F] getDiscriminatedUnion
function getDiscriminatedUnion(typeOrProgram, typeOrDiscriminator): [undefined | DiscriminatedUnion, readonly Diagnostic[]];Parameters
Section titled “Parameters”| Parameter | Type | 
|---|---|
| typeOrProgram | Program | 
| typeOrDiscriminator | Union | 
Returns
Section titled “Returns”[undefined | DiscriminatedUnion, readonly Diagnostic[]]