keras/src/ops/numpy.py/Ceil/compute_output_spec
class Ceil:    def compute_output_spec(self, x):
        if backend.standardize_dtype(x.dtype) == "int64":
            dtype = backend.floatx()
        else:
            dtype = dtypes.result_type(x.dtype, float)
        sparse = getattr(x, "sparse", False)
        return KerasTensor(x.shape, dtype=dtype, sparse=sparse)