function_template.py

def function_name(lhs, rhs):
  # Only change the parameter names if absolutely neccesary
  ts = VY_type(lhs, rhs)
  return {
    (number, number): lambda: stuff_with_lhs_and_rhs,
    (number, str): lambda: more_stuff_with_lhs_and_rhs,
    (str, number): lambda: even_more_stuff_with_lhs_and_rhs,
    (str, str): lambda: double_string_overload_idk,
    (any_other, type_overload_combination): lambda: whatever
  }.get(ts, lambda: vectorise(function_name, lhs, rhs))()