particleSystem startDirectionFunction emitPower argument obsolete?

Questions
1

Could it be that the first parameter of

particleSystem.startDirectionFunction = (emitPower: number, worldMatrix: Matrix, directionToUpdate: Vector3, particle: Particle, isLocal: boolean)

does not exist anymore? If so, someone can update docs:

2

Good catch done Update customizingParticles.md · BabylonJS/Documentation@2f43d20 · GitHub