docs: def get_var_type(self, name):
          """
          Return type string, compatible with numpy.
          """
          name = create_string_buffer(name)
          type_ = create_string_buffer(MAXSTRLEN)
          self.library.get_var_type.argtypes = [c_char_p, c_char_p]
          self.library.get_var_type(name, type_)
          return type_.value