def _process_placement(cls,
                           var1: MyCls,
                           var2: Dict[Tuple[str, str], Dict[int, Dict[str, Union[float,int]]]],
                           var3: AgainMyCls) ->  Dict[int, Dict[str, Union[float,int]]]:

Item = Union[float,int]
NameItemMap = Dict[str, Item]
IdNameItemMap = Dict[int, NameItemMap]

def _process_plcaement(cls, var: MyCls, var2: IdNameItemMap, var2: AgainMyCls) -> IdNameItemMap:
   ...