Names of the phases used as keys in intro and loop.
It allows for a phase name type-checking in the places
where the timer sequence is used.
Usually you doesn't have to specify those phase names
in the template definition, since they are inferred
by TypeScript from the intro and loop.
Optionalintro?: [phase: TPhaseName, frames: number][]Optionalloop?: [phase: TPhaseName, frames: number][]Optionalopts: { OptionaldelayOptionalonOptionalpaused?: boolean
A shorthand for BpxTimerSequence.of.