Function expandParts

expandParts(
    parts: readonly ChannelPart[],
): ReadonlySet<
    | "trim"
    | "mix"
    | "label"
    | "comp"
    | "eq"
    | "gate"
    | "drive"
    | "delay"
    | "reverb"
    | "order"
    | "chain"
    | "sends",
>
Resolve a selection to the atomic parts it covers.
Parameters
- parts: readonly ChannelPart[]
  what the operator selected, composites included
Returns ReadonlySet<
    | "trim"
    | "mix"
    | "label"
    | "comp"
    | "eq"
    | "gate"
    | "drive"
    | "delay"
    | "reverb"
    | "order"
    | "chain"
    | "sends",
>
the distinct atomic parts, so overlapping selections apply once