code: def satisfies(self, requirement, allow_prereleases=None):
      
      requirement = maybe_requirement(requirement)
      link_name = safe_name(self.name).lower()
      if link_name != requirement.key:
        return False
  
      # NB: If we upgrade to setuptools>=34 the SpecifierSet used here (requirement.specifier) will
      # come from a non-vendored `packaging` package and pex's bootstrap code in `PEXBuilder` will
      # need an update.
      return requirement.specifier.contains(self.raw_version, prereleases=allow_prereleases)
docs: Determine whether this package matches the requirement.
  
      :param requirement: The requirement to compare this Package against
      :type requirement: string or :class:`pkg_resources.Requirement`
      :param Optional[bool] allow_prereleases: Whether to allow prereleases to satisfy
        the `requirement`.
      :returns: True if the package matches the requirement, otherwise False