code: function omit(object, callback, thisArg) {
        var result = {};
  
        if (typeof callback != 'function') {
          var omitProps = baseFlatten(arguments, true, false, 1),
              length = omitProps.length;
  
          while (length--) {
            omitProps[length] = String(omitProps[length]);
          }
          var props = [];
          baseForIn(object, function(value, key) {
            props.push(key);
          });
  
          var index = -1;
          props = baseDifference(props, omitProps);
          length = props.length;
  
          while (++index < length) {
            var key = props[index];
            result[key] = object[key];
          }
        } else {
          callback = lodash.createCallback(callback, thisArg, 3);
          baseForIn(object, function(value, key, object) {
            if (!callback(value, key, object)) {
              result[key] = value;
            }
          });
        }
        return result;
      }
docs: Creates a shallow clone of `object` excluding the specified properties.
  Property names may be specified as individual arguments or as arrays of
  property names. If a callback is provided it will be executed for each
  property of `object` omitting the properties the callback returns truey
  for. The callback is bound to `thisArg` and invoked with three arguments;
  (value, key, object).
  
  @static
  @memberOf _
  @category Objects
  @param {Object} object The source object.
  @param {Function|...string|string[]} [callback] The function called per
  iteration or property names to omit, specified as individual property
  names or arrays of property names.
  @param {*} [thisArg] The `this` binding of `callback`.
  @returns {Object} Returns an object without the omitted properties.
  @example
  
  _.omit({ 'name': 'fred', 'age': 40 }, 'age');
  // => { 'name': 'fred' }
  
  _.omit({ 'name': 'fred', 'age': 40 }, function(value) {
  return typeof value == 'number';
  });
  // => { 'name': 'fred' }