update docs

雾聪

2023-12-05 2f5b2c57783e02a1a7771601367c1a36b8934ca6

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# -*- coding: utf-8 -*-
 
 
try:
    strtype = basestring
except NameError:
    strtype = str
 
 
def to_s(val):
    try:
        return unicode(val)
    except NameError:
        return str(val)