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from math import cos, sin, pi
def apply_scaling(alg: str, decay: float, current_step: int, total_steps: int) -> float:
if alg == "Flat":
return decay
ratio = float(current_step / total_steps)
rad = ratio * pi / 2
match alg:
case "Cos":
mod = cos(rad)
case "Sin":
mod = sin(rad)
case "1 - Cos":
mod = 1 - cos(rad)
case "1 - Sin":
mod = 1 - sin(rad)
return decay * mod