def retract(self, e, a, v):
ta = datetime.datetime.now()<EOL>ret = "<STR_LIT>" % (e, a, dump_edn_val(v))<EOL>rs = self.tx(ret)<EOL>tb = datetime.datetime.now() - ta<EOL>print(cl('<STR_LIT>' % (e,a,v, tb.microseconds/<NUM_LIT>), '<STR_LIT>'))<EOL>return rs<EOL>
redact the value of an attribute