# SPDX-License-Identifier: Apache-2.0
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from collections.abc import Mapping
from queue import Queue
from typing import Tuple, Type, Union
from urllib.parse import quote, quote_plus, unquote, urlencode, urlparse

string_types = str, bytes
map = map  # pylint: disable=invalid-name


def to_str(x: Union[str, bytes], encoding: str = "ascii") -> str:
    """
    returns x as a string encoded in "encoding" if it is not already a string
    :param x: the value to convert to a str
    :param encoding: the encoding to convert to - see https://docs.python.org/3/library/codecs.html#standard-encodings
    :return: an encoded str
    """
    if not isinstance(x, str):
        return x.decode(encoding)
    return x


def to_bytes(x: Union[str, bytes], encoding: str = "ascii") -> bytes:
    if not isinstance(x, bytes):
        return x.encode(encoding)
    return x


try:
    reraise_exceptions: Tuple[Type[BaseException], ...] = (RecursionError,)
except NameError:
    reraise_exceptions = ()

try:
    import asyncio

    reraise_exceptions += (asyncio.CancelledError,)
except (ImportError, AttributeError):
    pass


__all__ = [
    "string_types",
    "reraise_exceptions",
    "quote_plus",
    "quote",
    "urlencode",
    "unquote",
    "urlparse",
    "map",
    "Queue",
    "Mapping",
]