export default (function (o, c, d) {
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								  var sortBy = function sortBy(method, dates) {
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								    if (!dates || !dates.length || dates.length === 1 && !dates[0] || dates.length === 1 && Array.isArray(dates[0]) && !dates[0].length) {
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								      return null;
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								    }
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								    if (dates.length === 1 && dates[0].length > 0) {
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								      var _dates = dates;
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								      dates = _dates[0];
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								    }
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								    dates = dates.filter(function (date) {
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								      return date;
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								    });
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								    var result;
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								    var _dates2 = dates;
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								    result = _dates2[0];
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								    for (var i = 1; i < dates.length; i += 1) {
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								      if (!dates[i].isValid() || dates[i][method](result)) {
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								        result = dates[i];
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								      }
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								    }
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								    return result;
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								  };
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								  d.max = function () {
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								    var args = [].slice.call(arguments, 0); // eslint-disable-line prefer-rest-params
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								    return sortBy('isAfter', args);
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								  };
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								  d.min = function () {
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								    var args = [].slice.call(arguments, 0); // eslint-disable-line prefer-rest-params
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								    return sortBy('isBefore', args);
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								  };
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								});
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