code: def as_tuple(ireq):
      
  
      if not is_pinned_requirement(ireq):
          raise TypeError("Expected a pinned InstallRequirement, got {}".format(ireq))
  
      name = key_from_req(ireq.req)
      version = first(ireq.specifier._specs)._spec[1]
      extras = tuple(sorted(ireq.extras))
      return name, version, extras
docs: Pulls out the (name: str, version:str, extras:(str)) tuple from the pinned InstallRequirement.