Merge pull request #957 from alibaba-damo-academy/chenmengzheAAA-patch-5

chenmengzheAAA

2023-09-14 48f6ca5b540207f9939dafd5c39ca26e56aa6e3f

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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)