DPM-Solver-1 (equivalent to DDIM) from time `s` to time `t`. Args: x: A pytorch tensor. The initial value at time `s`. s: A pytorch tensor. The starting time, with the shape (1,). t: A pytorch tensor. The ending time, with the shape (1,).
(self, x, s, t, model_s=None, return_intermediate=False)
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