Method is_marker_line

mypy/util.py:742–748

(self, line: str)

        return start + self.colors[color] + text + self.NORMAL

    def is_marker_line(self, line: str) -> bool:
        s_line = line.lstrip()
        return (
            line.startswith(CODE_START)
            and s_line.startswith("^")
            and set(s_line).issubset({"^", "~"})
        )

    def fit_in_terminal(
        self, messages: list[str], fixed_terminal_width: int | None = None