def __init__(self, parameter_name, value, allowed_values):
super(EnumRejectionError, self).__init__(parameter_name, value)<EOL>self.allowed_values = allowed_values<EOL>
Constructor for EnumRejectionError.

        Args:
          parameter_name: String; the name of the enum parameter which had a value
            rejected.
          value: The actual value passed in for the enum. Usually string.
          allowed_values: List of strings allowed for the enum.