May 22, 2025 · May 23, 2025 · May 23, 2025 · May 23, 2025 · May 23, 2025
diff --git a/lib/matplotlib/category.pyi b/lib/matplotlib/category.pyi
 """
 Plotting of string "category" data: ``plot(['d', 'f', 'a'], [1, 2, 3])`` will
 plot three points with x-axis values of 'd', 'f', 'a'.

 See :doc:`/gallery/lines_bars_and_markers/categorical_variables` for an
 example.

 The module uses Matplotlib's `matplotlib.units` mechanism to convert from
 strings to integers and provides a tick locator, a tick formatter, and the
 `.UnitData` class that creates and stores the string-to-integer mapping.
 """

 from __future__ import annotations
 from matplotlib.units import ConversionInterface, AxisInfo
 from matplotlib import ticker
 from matplotlib.axis import Axis
 from collections import OrderedDict
 import numpy as np
 from typing import Any, Dict, Iterable, List, Optional, Union

 class StrCategoryConverter(ConversionInterface):
    @staticmethod
    def convert(
        value: Union[str, Iterable[str]],
        unit: UnitData,
        axis: Axis
    ) -> Union[float, np.ndarray]: ...
    @staticmethod
    def axisinfo(unit: UnitData, axis: Axis) -> AxisInfo: ...
    @staticmethod
    def default_units(
        data: Union[str, Iterable[str]],
        axis: Axis
    ) -> UnitData: ...
    @staticmethod
    def _validate_unit(unit: UnitData) -> None: ...

 class StrCategoryLocator(ticker.Locator):
    def __init__(self, units_mapping: Dict[str, int]) -> None: ...
    def __call__(self) -> List[int]: ...
    def tick_values(self, vmin: Any, vmax: Any) -> List[int]: ...

 class StrCategoryFormatter(ticker.Formatter):
    def __init__(self, units_mapping: Dict[str, int]) -> None: ...
    def __call__(self, x: float, pos: Optional[int] = None) -> str: ...
    def format_ticks(self, values: Iterable[float]) -> List[str]: ...
    @staticmethod
    def _text(value: Union[str, bytes]) -> str: ...

 class UnitData:
    _mapping: OrderedDict[Union[str, bytes], int]
    def __init__(
        self,
        data: Optional[Iterable[Union[str, bytes]]] = None
    ) -> None: ...
    def update(self, data: Iterable[Union[str, bytes]]) -> None: ...
    @staticmethod
    def _str_is_convertible(val: Union[str, bytes]) -> bool: ...