_getChildren(policies) {
    policies.forEach((name, index) => {
      const children = policies.slice(index+1, policies.length-index+1);
      children.forEach(child => {
        if (!this._policies.objects[name].children.includes(child)) {
          this._policies.objects[name].children.push(child);
        }
      });
    });
  }
/**
   * Get a policy children
   * @param policies
   * @private
   */
Get a policy children
@param policies
@private
Get a policy children @param policies @private
_getChildren(policies) {
    policies.forEach((name, index) => {
      const children = policies.slice(index+1, policies.length-index+1);
      children.forEach(child => {
        if (!this._policies.objects[name].children.includes(child)) {
          this._policies.objects[name].children.push(child);
        }
      });
    });
  }
_getChildren ( policies ) { policies . forEach ( ( name , index ) => { const children = policies . slice ( index + 1 , policies . length - index + 1 ) ; children . forEach ( child => { if ( ! this . _policies . objects [ name ] . children . includes ( child ) ) { this . _policies . objects [ name ] . children . push ( child ) ; } } ) ; } ) ; }
Get a policy children
 @param policies
 @private
Get a policy children @param policies @private