this.prototype._each.call(object, function(pair) { var value = Object.toJSON(pair.value); if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value); 
return this.inject([], function(array, value, index) { if (0 == index || (sorted ? array.last() != value : !array.include(value))) array.push(value); return array; 
    this.prototype._each.call(object, function(pair) {      var value = Object.toJSON(pair.value);      if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value);    });
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