tep sizes in the noise schedule during the sampling process. If True,
the sigmas are determined according to a sequence of noise levels {σi}.   lambda_min_clipped (float, defaults to -inf) —
Clipping threshold for the minimum value of lambda(t) for numerical stability. This is critical for the
cosine (squaredcos_cap_v2) noise schedule.   variance_type (str, optional) —
Set to “learned” or “learned_range” for diffusion models that predict varian