import numpy as np
import numpy.typing as npt
AR_c: npt.NDArray[np.complex128]
AR_m: npt.NDArray[np.timedelta64]
AR_M: npt.NDArray[np.datetime64]
AR_O: npt.NDArray[np.object_]
np.fix(AR_c) # E: incompatible type
np.fix(AR_m) # E: incompatible type
np.fix(AR_M) # E: incompatible type
np.isposinf(AR_c) # E: incompatible type
np.isposinf(AR_m) # E: incompatible type
np.isposinf(AR_M) # E: incompatible type
np.isposinf(AR_O) # E: incompatible type
np.isneginf(AR_c) # E: incompatible type
np.isneginf(AR_m) # E: incompatible type
np.isneginf(AR_M) # E: incompatible type
np.isneginf(AR_O) # E: incompatible type