<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def to_bytes_safe(text, encoding="utf-8"):
 """Convert the input value into bytes type. If the input value is string type and could be encode as UTF-8 bytes, the encoded value will be returned. Otherwise, the encoding has failed, the origin value will be returned as well. :param text: the input value which could be string or bytes. :param encoding: the expected encoding be used while converting the string input into bytes. :rtype: :class:`~__builtin__.bytes` """

    if not isinstance(text, (bytes, text_type)):
        raise TypeError("must be string type")

    if isinstance(text, text_type):
        return text.encode(encoding)

    return text