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							var MATCH = require('./_wks')('match');
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							module.exports = function (KEY) {
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							  var re = /./;
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							  try {
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							    '/./'[KEY](re);
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							  } catch (e) {
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							    try {
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							      re[MATCH] = false;
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							      return !'/./'[KEY](re);
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							    } catch (f) { /* empty */ }
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							  } return true;
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							};
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