from typing import  List, TypeVar, Type,cast

T=TypeVar("T",bound=Type)

def enumValues(claz:T)->List[T]:
  '''
  @param claz the class of which the enum values are needed
  @returns the enum values in given clazz T. 
  Assumption : T contains some objects of type T and these are the enum values of T.
  '''
  values:List[T] = [getattr(claz, nm) for nm in dir(claz)]
  return [val for val in values if isinstance(val, claz)]


def enumToString(item:T) -> str:
    '''
    @param an enum element. 
    @return a string S containing the name of this element. 
    S is such that getattr(item, S) = item.
    Assumption : enum types T contain some objects of type T and these are the enum values of T.
    '''
    return [name for name in dir(type(item)) if getattr(type(item), name)==item][0]


class enum:
    def __repr__(self)->str:
         return enumToString(self) #type:ignore