Merge branch 'main' into dev_wjm_infer

jmwang66

2023-06-19 4e0fcee2a915641e7f39d62c389bee561d849e19

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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)