Replaces the call’s custom metadata bag with the provided object. Existing keys not present in _meta are discarded. To merge instead, use updateMeta.
Metadata is observed via call.meta$ on all connected peers; use it to share UI state (e.g. a current presenter name, agenda items) across the call.
Not yet implemented in v4. This method is on the API surface and will throw when called.
New metadata object. Replaces all existing keys.
Promise<void> — once implemented, resolves after the server has propagated the new metadata.
Throws unconditionally — implementation pending.
updateMeta — partial-merge alternative.meta$ — observable of the current metadata.