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from collections.abc import Sequence
from typing import Literal as L
from numpy import complex128, float64
from numpy._typing import ArrayLike, NDArray, _ArrayLikeNumber_co
_NormKind = L[None, "backward", "ortho", "forward"]
__all__: list[str]
def fft(
a: ArrayLike,
n: None | int = ...,
axis: int = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def ifft(
a: ArrayLike,
n: None | int = ...,
axis: int = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def rfft(
a: ArrayLike,
n: None | int = ...,
axis: int = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def irfft(
a: ArrayLike,
n: None | int = ...,
axis: int = ...,
norm: _NormKind = ...,
) -> NDArray[float64]: ...
# Input array must be compatible with `np.conjugate`
def hfft(
a: _ArrayLikeNumber_co,
n: None | int = ...,
axis: int = ...,
norm: _NormKind = ...,
) -> NDArray[float64]: ...
def ihfft(
a: ArrayLike,
n: None | int = ...,
axis: int = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def fftn(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def ifftn(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def rfftn(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def irfftn(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[float64]: ...
def fft2(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def ifft2(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def rfft2(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[complex128]: ...
def irfft2(
a: ArrayLike,
s: None | Sequence[int] = ...,
axes: None | Sequence[int] = ...,
norm: _NormKind = ...,
) -> NDArray[float64]: ...