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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 _escape(value):
 """ Escape a single value of a URL string or a query parameter. If it is a list or tuple, turn it into a comma-separated string first. """


    # make sequences into comma-separated stings
    if isinstance(value, (list, tuple)):
        value = ",".join(value)

    # dates and datetimes into isoformat
    elif isinstance(value, (date, datetime)):
        value = value.isoformat()

    # make bools into true/false strings
    elif isinstance(value, bool):
        value = str(value).lower()

    # don't decode bytestrings
    elif isinstance(value, bytes):
        return value

    # encode strings to utf-8
    if isinstance(value, string_types):
        if PY2 and isinstance(value, unicode):
            return value.encode("utf-8")
        if not PY2 and isinstance(value, str):
            return value.encode("utf-8")

    return str(value)