Show overoaded functions in intelli

Hi,

we have added support for overloaded functions in our editor, but the intelli prompt only shows the last signature. During runtime only the last signature can be called, but the useable parameters are defined by the overloads. The code would look like this:

from typing import overload

@overload
def MyTestCase():
  pass

@overload
def MyTestCase(a : int):
  pass

@overload
def MyTestCase(b : float):
  pass

def MyTestCase(*arg):
  if len(arg) == 0:
    # code for void parameter
    pass

  if len(arg) == 1:
    if isinstance(arg[0], int):
      # code for int parameter
      pass
    elif isinstance(arg[0], float):
      # code for float parameter
      pass