@Override
  @Nullable
  public String findParameterType(@NotNull PyAstFunction function, @NotNull String name) {
    final PySignature signature = findSignature(function);
    if (signature != null) {
      return signature.getArgTypeQualifiedName(name);
    }
    return null;
  }
@Override
  @Nullable
  public String findParameterType(@NotNull PyAstFunction function, @NotNull String name)