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- from pathlib import Path
- from typing import IO, Any
- import numpy as np
- from typing_extensions import assert_type
- path1: Path
- path2: str
- d1 = np.lib.npyio.DataSource(path1)
- d2 = np.lib.npyio.DataSource(path2)
- d3 = np.lib.npyio.DataSource(None)
- assert_type(d1.abspath("..."), str)
- assert_type(d2.abspath("..."), str)
- assert_type(d3.abspath("..."), str)
- assert_type(d1.exists("..."), bool)
- assert_type(d2.exists("..."), bool)
- assert_type(d3.exists("..."), bool)
- assert_type(d1.open("...", "r"), IO[Any])
- assert_type(d2.open("...", encoding="utf8"), IO[Any])
- assert_type(d3.open("...", newline="/n"), IO[Any])
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