[EDIT] FILE: datasource.pyi

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