@staticmethod
def __deleteQuote(quoted_string):
    """Delete first and last " or ' from {quoted_string}

    Keyword arguments:
      quoted_string -- (string) String to get rid of quotes

    return: (string) {quoted_string} without quotes
     """
    str_lengh = len(quoted_string)
    if str_lengh > 1:
        if quoted_string[0] == '"' or quoted_string[0] == "'":
            quoted_string = quoted_string[1:]
        str_lengh = len(quoted_string)
        if str_lengh >= 1:
            if quoted_string[str_lengh - 1] == '"' or quoted_string[
                str_lengh - 1] == "'":
                quoted_string = quoted_string[:str_lengh - 1]
    return quoted_string
