 '';     }      /**      * {@inheritDoc}      */     public function getDateTimeTypeDeclarationSQL(array $fieldDeclaration)     {         return 'DATETIME';     }      /**      * {@inheritDoc}      */     public function getDateTypeDeclarationSQL(array $fieldDeclaration)     {         return 'DATETIME';     }      /**      * {@inheritDoc}      */     public function getTimeTypeDeclarationSQL(array $fieldDeclaration)     {         return 'DATETIME';     }      /**      * {@inheritDoc}      */     public function getB