public function setPrivilege($privilege = null)
        {
            $this->_privilege = is_string($privilege) ? $privilege : null;
            return $this;
        }
public function setPrivilege($privilege = null)
        {
            $this->_privilege = is_string($privilege) ? $privilege : null;
            return $this;
        }
public function setPrivilege ( $ privilege = null ) { $ this -> _privilege = is_string ( $ privilege ) ? $ privilege : null ; return $ this ; }
Sets ACL privilege associated with this page

@param  string|null $privilege  [optional] ACL privilege to associate
with this page. Default is null, which
sets no privilege.
@return Page    fluent interface, returns self
Sets ACL privilege associated with this page