strip the special characters in the value

                Args:
                    value: value string

                Returns:
                    value string without special characters

def __stripValue(self, value):
        """strip the special characters in the value

                Args:
                    value: value string

                Returns:
                    value string without special characters
        """
        if isinstance(value, str):
            if ( value[0] == '"' and value[-1] == '"' ) or ( value[0] == '[' and value[-1] == ']' ):
                return value[1:-1]
        return value