function fileReferenceFor(source, providerName): string;Defined in: packages/ai/src/utilities/content-source.ts:27
Resolve the handle providerName should send for a file source.
A file source carries one opaque handle (value) and, optionally, the provider that issued it. An adapter always knows which provider it talks to, so a source that names no provider is taken as-is.
string
string
when the source names a different issuing provider. A handle only resolves at the provider that minted it.