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define(['./_castPath', './_isKey', './last', './_parent', './_toKey'], function(castPath, isKey, last, parent, toKey) {
  /** Used for built-in method references. */  var objectProto = Object.prototype;
  /** Used to check objects for own properties. */  var hasOwnProperty = objectProto.hasOwnProperty;
  /**   * The base implementation of `_.unset`.   *   * @private   * @param {Object} object The object to modify.   * @param {Array|string} path The path of the property to unset.   * @returns {boolean} Returns `true` if the property is deleted, else `false`.   */  function baseUnset(object, path) {    path = isKey(path, object) ? [path] : castPath(path);    object = parent(object, path);
    var key = toKey(last(path));    return !(object != null && hasOwnProperty.call(object, key)) || delete object[key];  }
  return baseUnset;});