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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _bitResponseToValue(bytestring):
 """Convert a response string to a numerical value. Args: bytestring (str):
 A string of length 1. Can be for example ``\\x01``. Returns: The converted value (int). Raises: TypeError, ValueError """

    _checkString(bytestring, description='bytestring', minlength=1, maxlength=1)

    RESPONSE_ON  = '\x01'
    RESPONSE_OFF = '\x00'

    if bytestring == RESPONSE_ON:
        return 1
    elif bytestring == RESPONSE_OFF:
        return 0
    else:
        raise ValueError('Could not convert bit response to a value. Input: {0!r}'.format(bytestring))