module/User/src/Grid/User/Model/Permissions/Model.php
public function setRole( Acl\Role\RoleInterface $role = null )
    {
        $this->role = $role;
        return $this;
    }
public function setRole( Acl\Role\RoleInterface $role = null )
    {
        $this->role = $role;
        return $this;
    }
public function setRole ( Acl \ Role \ RoleInterface $ role = null ) { $ this -> role = $ role ; return $ this ; }
Set inner acl-role

@param \Zend\Permissions\Acl\Role\RoleInterface $role
@return \User\Model\Permissions\Model
Set inner acl - role