def StrContains(input_string, substring):
    """
    Return True if the substring is contained in the concrete value of the input_string
    otherwise false.

    :param input_string: the string we want to check
    :param substring: the string we want to check if it's contained inside the input_string
    :return: True is substring is contained in input_string else false
    """
    return substring.value in input_string.value