(
        self,
        prefer_binary=False,  # type: bool
        allow_all_prereleases=False,  # type: bool
    )
:param allow_all_prereleases: Whether to allow all pre-releases.
:param allow_all_prereleases: Whether to allow all pre-releases.
: param allow_all_prereleases : Whether to allow all pre - releases .
def __init__(
        self,
        prefer_binary=False,  # type: bool
        allow_all_prereleases=False,  # type: bool
    ):
        # type: (...) -> None
        """
        :param allow_all_prereleases: Whether to allow all pre-releases.
        """
        self.allow_all_prereleases = allow_all_prereleases
        self.prefer_binary = prefer_binary
def __init__ ( self , prefer_binary = False , # type: bool allow_all_prereleases = False , # type: bool ) : # type: (...) -> None self . allow_all_prereleases = allow_all_prereleases self . prefer_binary = prefer_binary