docs: def convert2dbus(value, signature):
      """Converts `value` type from python to dbus according signature.
  
      :param value: value to convert to dbus object
      :param str signature: dbus type signature.
      :returns: value in dbus type.
      """
      if len(signature) == 2 and signature.startswith('a'):
          return dbus.Array(value, signature=signature[-1])
      dbus_string_type = dbus.String if PY3 else dbus.UTF8String
      type_map = {
          'b': dbus.Boolean, 'y': dbus.Byte, 'n': dbus.Int16,
          'i': dbus.Int32, 'x': dbus.Int64, 'q': dbus.UInt16, 'u': dbus.UInt32,
          't': dbus.UInt64, 'd': dbus.Double, 'o': dbus.ObjectPath,
          'g': dbus.Signature, 's': dbus_string_type}
      return type_map[signature](value)