import sys
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from collections import deque
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from pathlib import Path
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from typing import Any, TypeVar, assert_type
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import numpy as np
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import numpy.typing as npt
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_ScalarT_co = TypeVar("_ScalarT_co", bound=np.generic, covariant=True)
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class SubClass(npt.NDArray[_ScalarT_co]): ...
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i8: np.int64
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A: npt.NDArray[np.float64]
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B: SubClass[np.float64]
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C: list[int]
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D: SubClass[np.float64 | np.int64]
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mixed_shape: tuple[int, np.int64]
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def func(i: int, j: int, **kwargs: Any) -> SubClass[np.float64]: ...
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assert_type(np.empty_like(A), npt.NDArray[np.float64])
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assert_type(np.empty_like(B), SubClass[np.float64])
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assert_type(np.empty_like([1, 1.0]), npt.NDArray[Any])
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assert_type(np.empty_like(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.empty_like(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.array(A), npt.NDArray[np.float64])
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assert_type(np.array(B), npt.NDArray[np.float64])
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assert_type(np.array([1, 1.0]), npt.NDArray[Any])
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assert_type(np.array(deque([1, 2, 3])), npt.NDArray[Any])
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assert_type(np.array(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.array(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.array(A, like=A), npt.NDArray[np.float64])
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assert_type(np.array(A, subok=True), npt.NDArray[np.float64])
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assert_type(np.array(B, subok=True), SubClass[np.float64])
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assert_type(np.array(B, subok=True, ndmin=0), SubClass[np.float64])
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assert_type(np.array(B, subok=True, ndmin=1), SubClass[np.float64])
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assert_type(np.array(D), npt.NDArray[np.float64 | np.int64])
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# https://github.com/numpy/numpy/issues/29245
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assert_type(np.array([], dtype=np.bool), npt.NDArray[np.bool])
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assert_type(np.zeros([1, 5, 6]), npt.NDArray[np.float64])
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assert_type(np.zeros([1, 5, 6], dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.zeros([1, 5, 6], dtype='c16'), npt.NDArray[Any])
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assert_type(np.zeros(mixed_shape), npt.NDArray[np.float64])
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assert_type(np.empty([1, 5, 6]), npt.NDArray[np.float64])
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assert_type(np.empty([1, 5, 6], dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.empty([1, 5, 6], dtype='c16'), npt.NDArray[Any])
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assert_type(np.empty(mixed_shape), npt.NDArray[np.float64])
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assert_type(np.concatenate(A), npt.NDArray[np.float64])
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assert_type(np.concatenate([A, A]), npt.NDArray[Any]) # pyright correctly infers this as NDArray[float64]
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assert_type(np.concatenate([[1], A]), npt.NDArray[Any])
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assert_type(np.concatenate([[1], [1]]), npt.NDArray[Any])
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assert_type(np.concatenate((A, A)), npt.NDArray[np.float64])
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assert_type(np.concatenate(([1], [1])), npt.NDArray[Any])
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assert_type(np.concatenate([1, 1.0]), npt.NDArray[Any])
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assert_type(np.concatenate(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.concatenate(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.concatenate([1, 1.0], out=A), npt.NDArray[np.float64])
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assert_type(np.asarray(A), npt.NDArray[np.float64])
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assert_type(np.asarray(B), npt.NDArray[np.float64])
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assert_type(np.asarray([1, 1.0]), npt.NDArray[Any])
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assert_type(np.asarray(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.asarray(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.asanyarray(A), npt.NDArray[np.float64])
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assert_type(np.asanyarray(B), SubClass[np.float64])
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assert_type(np.asanyarray([1, 1.0]), npt.NDArray[Any])
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assert_type(np.asanyarray(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.asanyarray(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.ascontiguousarray(A), npt.NDArray[np.float64])
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assert_type(np.ascontiguousarray(B), npt.NDArray[np.float64])
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assert_type(np.ascontiguousarray([1, 1.0]), npt.NDArray[Any])
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assert_type(np.ascontiguousarray(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.ascontiguousarray(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.asfortranarray(A), npt.NDArray[np.float64])
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assert_type(np.asfortranarray(B), npt.NDArray[np.float64])
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assert_type(np.asfortranarray([1, 1.0]), npt.NDArray[Any])
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assert_type(np.asfortranarray(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.asfortranarray(A, dtype='c16'), npt.NDArray[Any])
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assert_type(np.fromstring("1 1 1", sep=" "), npt.NDArray[np.float64])
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assert_type(np.fromstring(b"1 1 1", sep=" "), npt.NDArray[np.float64])
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assert_type(np.fromstring("1 1 1", dtype=np.int64, sep=" "), npt.NDArray[np.int64])
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assert_type(np.fromstring(b"1 1 1", dtype=np.int64, sep=" "), npt.NDArray[np.int64])
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assert_type(np.fromstring("1 1 1", dtype="c16", sep=" "), npt.NDArray[Any])
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assert_type(np.fromstring(b"1 1 1", dtype="c16", sep=" "), npt.NDArray[Any])
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assert_type(np.fromfile("test.txt", sep=" "), npt.NDArray[np.float64])
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assert_type(np.fromfile("test.txt", dtype=np.int64, sep=" "), npt.NDArray[np.int64])
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assert_type(np.fromfile("test.txt", dtype="c16", sep=" "), npt.NDArray[Any])
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with open("test.txt") as f:
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assert_type(np.fromfile(f, sep=" "), npt.NDArray[np.float64])
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assert_type(np.fromfile(b"test.txt", sep=" "), npt.NDArray[np.float64])
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assert_type(np.fromfile(Path("test.txt"), sep=" "), npt.NDArray[np.float64])
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assert_type(np.fromiter("12345", np.float64), npt.NDArray[np.float64])
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assert_type(np.fromiter("12345", float), npt.NDArray[Any])
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assert_type(np.frombuffer(A), npt.NDArray[np.float64])
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assert_type(np.frombuffer(A, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.frombuffer(A, dtype="c16"), npt.NDArray[Any])
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assert_type(np.arange(False, True), np.ndarray[tuple[int], np.dtype[np.signedinteger]])
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assert_type(np.arange(10), np.ndarray[tuple[int], np.dtype[np.signedinteger]])
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assert_type(np.arange(0, 10, step=2), np.ndarray[tuple[int], np.dtype[np.signedinteger]])
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assert_type(np.arange(10.0), np.ndarray[tuple[int], np.dtype[np.floating]])
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assert_type(np.arange(start=0, stop=10.0), np.ndarray[tuple[int], np.dtype[np.floating]])
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assert_type(np.arange(np.timedelta64(0)), np.ndarray[tuple[int], np.dtype[np.timedelta64]])
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assert_type(np.arange(0, np.timedelta64(10)), np.ndarray[tuple[int], np.dtype[np.timedelta64]])
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assert_type(np.arange(np.datetime64("0"), np.datetime64("10")), np.ndarray[tuple[int], np.dtype[np.datetime64]])
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assert_type(np.arange(10, dtype=np.float64), np.ndarray[tuple[int], np.dtype[np.float64]])
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assert_type(np.arange(0, 10, step=2, dtype=np.int16), np.ndarray[tuple[int], np.dtype[np.int16]])
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assert_type(np.arange(10, dtype=int), np.ndarray[tuple[int], np.dtype])
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assert_type(np.arange(0, 10, dtype="f8"), np.ndarray[tuple[int], np.dtype])
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assert_type(np.require(A), npt.NDArray[np.float64])
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assert_type(np.require(B), SubClass[np.float64])
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assert_type(np.require(B, requirements=None), SubClass[np.float64])
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assert_type(np.require(B, dtype=int), npt.NDArray[Any])
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assert_type(np.require(B, requirements="E"), npt.NDArray[Any])
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assert_type(np.require(B, requirements=["ENSUREARRAY"]), npt.NDArray[Any])
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assert_type(np.require(B, requirements={"F", "E"}), npt.NDArray[Any])
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assert_type(np.require(B, requirements=["C", "OWNDATA"]), SubClass[np.float64])
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assert_type(np.require(B, requirements="W"), SubClass[np.float64])
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assert_type(np.require(B, requirements="A"), SubClass[np.float64])
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assert_type(np.require(C), npt.NDArray[Any])
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assert_type(np.linspace(0, 10), npt.NDArray[np.float64])
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assert_type(np.linspace(0, 10j), npt.NDArray[np.complexfloating])
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assert_type(np.linspace(0, 10, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.linspace(0, 10, dtype=int), npt.NDArray[Any])
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assert_type(np.linspace(0, 10, retstep=True), tuple[npt.NDArray[np.float64], np.float64])
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assert_type(np.linspace(0j, 10, retstep=True), tuple[npt.NDArray[np.complexfloating], np.complexfloating])
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assert_type(np.linspace(0, 10, retstep=True, dtype=np.int64), tuple[npt.NDArray[np.int64], np.int64])
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assert_type(np.linspace(0j, 10, retstep=True, dtype=int), tuple[npt.NDArray[Any], Any])
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assert_type(np.logspace(0, 10), npt.NDArray[np.float64])
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assert_type(np.logspace(0, 10j), npt.NDArray[np.complexfloating])
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assert_type(np.logspace(0, 10, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.logspace(0, 10, dtype=int), npt.NDArray[Any])
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assert_type(np.geomspace(0, 10), npt.NDArray[np.float64])
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assert_type(np.geomspace(0, 10j), npt.NDArray[np.complexfloating])
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assert_type(np.geomspace(0, 10, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.geomspace(0, 10, dtype=int), npt.NDArray[Any])
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assert_type(np.zeros_like(A), npt.NDArray[np.float64])
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assert_type(np.zeros_like(C), npt.NDArray[Any])
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assert_type(np.zeros_like(A, dtype=float), npt.NDArray[Any])
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assert_type(np.zeros_like(B), SubClass[np.float64])
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assert_type(np.zeros_like(B, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.ones_like(A), npt.NDArray[np.float64])
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assert_type(np.ones_like(C), npt.NDArray[Any])
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assert_type(np.ones_like(A, dtype=float), npt.NDArray[Any])
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assert_type(np.ones_like(B), SubClass[np.float64])
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assert_type(np.ones_like(B, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.full_like(A, i8), npt.NDArray[np.float64])
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assert_type(np.full_like(C, i8), npt.NDArray[Any])
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assert_type(np.full_like(A, i8, dtype=int), npt.NDArray[Any])
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assert_type(np.full_like(B, i8), SubClass[np.float64])
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assert_type(np.full_like(B, i8, dtype=np.int64), npt.NDArray[np.int64])
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_size: int
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_shape_0d: tuple[()]
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_shape_1d: tuple[int]
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_shape_2d: tuple[int, int]
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_shape_nd: tuple[int, ...]
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_shape_like: list[int]
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assert_type(np.ones(_shape_0d), np.ndarray[tuple[()], np.dtype[np.float64]])
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assert_type(np.ones(_size), np.ndarray[tuple[int], np.dtype[np.float64]])
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assert_type(np.ones(_shape_2d), np.ndarray[tuple[int, int], np.dtype[np.float64]])
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assert_type(np.ones(_shape_nd), np.ndarray[tuple[int, ...], np.dtype[np.float64]])
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assert_type(np.ones(_shape_1d, dtype=np.int64), np.ndarray[tuple[int], np.dtype[np.int64]])
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assert_type(np.ones(_shape_like), npt.NDArray[np.float64])
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assert_type(np.ones(_shape_like, dtype=np.dtypes.Int64DType()), np.ndarray[Any, np.dtypes.Int64DType])
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assert_type(np.ones(_shape_like, dtype=int), npt.NDArray[Any])
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assert_type(np.ones(mixed_shape), npt.NDArray[np.float64])
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assert_type(np.full(_size, i8), np.ndarray[tuple[int], np.dtype[np.int64]])
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assert_type(np.full(_shape_2d, i8), np.ndarray[tuple[int, int], np.dtype[np.int64]])
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assert_type(np.full(_shape_like, i8), npt.NDArray[np.int64])
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assert_type(np.full(_shape_like, 42), npt.NDArray[Any])
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assert_type(np.full(_size, i8, dtype=np.float64), np.ndarray[tuple[int], np.dtype[np.float64]])
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assert_type(np.full(_size, i8, dtype=float), np.ndarray[tuple[int], np.dtype])
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assert_type(np.full(_shape_like, 42, dtype=float), npt.NDArray[Any])
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assert_type(np.full(_shape_0d, i8, dtype=object), np.ndarray[tuple[()], np.dtype])
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assert_type(np.indices([1, 2, 3]), npt.NDArray[np.int_])
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assert_type(np.indices([1, 2, 3], sparse=True), tuple[npt.NDArray[np.int_], ...])
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assert_type(np.fromfunction(func, (3, 5)), SubClass[np.float64])
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assert_type(np.identity(10), npt.NDArray[np.float64])
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assert_type(np.identity(10, dtype=np.int64), npt.NDArray[np.int64])
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assert_type(np.identity(10, dtype=int), npt.NDArray[Any])
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assert_type(np.atleast_1d(A), npt.NDArray[np.float64])
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assert_type(np.atleast_1d(C), npt.NDArray[Any])
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assert_type(np.atleast_1d(A, A), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
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assert_type(np.atleast_1d(A, C), tuple[npt.NDArray[Any], npt.NDArray[Any]])
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assert_type(np.atleast_1d(C, C), tuple[npt.NDArray[Any], npt.NDArray[Any]])
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assert_type(np.atleast_1d(A, A, A), tuple[npt.NDArray[np.float64], ...])
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assert_type(np.atleast_1d(C, C, C), tuple[npt.NDArray[Any], ...])
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assert_type(np.atleast_2d(A), npt.NDArray[np.float64])
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assert_type(np.atleast_2d(A, A), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
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assert_type(np.atleast_2d(A, A, A), tuple[npt.NDArray[np.float64], ...])
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assert_type(np.atleast_3d(A), npt.NDArray[np.float64])
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assert_type(np.atleast_3d(A, A), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
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assert_type(np.atleast_3d(A, A, A), tuple[npt.NDArray[np.float64], ...])
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assert_type(np.vstack([A, A]), npt.NDArray[np.float64])
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assert_type(np.vstack([A, A], dtype=np.float32), npt.NDArray[np.float32])
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assert_type(np.vstack([A, C]), npt.NDArray[Any])
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assert_type(np.vstack([C, C]), npt.NDArray[Any])
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assert_type(np.hstack([A, A]), npt.NDArray[np.float64])
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assert_type(np.hstack([A, A], dtype=np.float32), npt.NDArray[np.float32])
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assert_type(np.stack([A, A]), npt.NDArray[np.float64])
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assert_type(np.stack([A, A], dtype=np.float32), npt.NDArray[np.float32])
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assert_type(np.stack([A, C]), npt.NDArray[Any])
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assert_type(np.stack([C, C]), npt.NDArray[Any])
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assert_type(np.stack([A, A], axis=0), npt.NDArray[np.float64])
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assert_type(np.stack([A, A], out=B), SubClass[np.float64])
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assert_type(np.block([[A, A], [A, A]]), npt.NDArray[Any]) # pyright correctly infers this as NDArray[float64]
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assert_type(np.block(C), npt.NDArray[Any])
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if sys.version_info >= (3, 12):
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from collections.abc import Buffer
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def create_array(obj: npt.ArrayLike) -> npt.NDArray[Any]: ...
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buffer: Buffer
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assert_type(create_array(buffer), npt.NDArray[Any])
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