/**
 * Maps a viseme code (as used in `visemeJson`) to a morph-target name on the
 * model. Both the legacy single-letter codes (A–K, X) and the standard
 * Oculus / Ready Player Me viseme names are accepted, so output from the
 * `fromAzureVisemes` / `fromPollySpeechMarks` / `fromRhubarb` helpers works
 * directly.
 */
export declare const phonemeToViseme: Record<string, string>;