refactor: sidestep PhpStorm warning on @method docblock in Model (#10444)

Author: gr8man

system/Model.php

@@ -40,6 +40,11 @@
  *
  * @property-read BaseConnection $db
  *
+ * @phpstan-type WhenCallback        callable(BaseBuilder, mixed): mixed
+ * @phpstan-type WhenDefaultCallback callable(BaseBuilder): mixed
+ *
+ * @phpstan-import-type row_array from BaseModel
+ *
  * @method $this groupBy($by, ?bool $escape = null)
  * @method $this groupEnd()
  * @method $this groupStart()
@@ -78,15 +83,11 @@
  * @method $this selectMax(string $select = '', string $alias = '')
  * @method $this selectMin(string $select = '', string $alias = '')
  * @method $this selectSum(string $select = '', string $alias = '')
- * @method $this when($condition, callable $callback, ?callable $defaultCallback = null)
- * @method $this whenNot($condition, callable $callback, ?callable $defaultCallback = null)
+ * @method $this when($condition, WhenCallback $callback, ?WhenDefaultCallback $defaultCallback = null)
+ * @method $this whenNot($condition, WhenCallback $callback, ?WhenDefaultCallback $defaultCallback = null)
  * @method $this where($key, $value = null, ?bool $escape = null)
  * @method $this whereIn(?string $key = null, $values = null, ?bool $escape = null)
  * @method $this whereNotIn(?string $key = null, $values = null, ?bool $escape = null)
- *
- * @phpstan-method $this when($condition, callable(BaseBuilder, mixed): mixed $callback, (callable(BaseBuilder): mixed)|null $defaultCallback = null)
- * @phpstan-method $this whenNot($condition, callable(BaseBuilder, mixed): mixed $callback, (callable(BaseBuilder): mixed)|null $defaultCallback = null)
- * @phpstan-import-type row_array from BaseModel
  */
 class Model extends BaseModel
 {