def forward(self, vec):
    vec = (vec * self.scale)
    for _ in range(self.nsteps):
        vec = (vec + self.transformer(vec, vec))
    return vec
def forward(self, vec):
    vec = (vec * self.scale)
    for _ in range(self.nsteps):
        vec = (vec + self.transformer(vec, vec))
    return vec