OptionalenumsThe copy for each enum a parameter is limited to, keyed by enum id — see IFunction.IDescriptor.getEnums.
The function this descriptor belongs to — must match FunctionHint.name to be shown.
Per-parameter descriptions, keyed by parameter name (each field optional — may be absent).
One-line summary of what the function does.
The function's self-describing text, loaded lazily (async) from
getDescriptor(). Keyed bynameso a stale descriptor (from the previous function) is ignored while the next one loads.