new appraoch

pancake/system/vendor/league/flysystem/deprecations.md

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+# Deprecations
+
+This document lists all the planned deprecations.
+
+## Handlers will be removed in 2.0
+
+The `Handler` type and associated calls will be removed in version 2.0.
+
+### Upgrade path
+
+You should create your own implementation for handling OOP usage,
+but it's recommended to move away from using an OOP-style wrapper entirely.
+
+The reason for this is that it's too easy for implementation details (for
+your application this is Flysystem) to leak into the application. The most
+important part for Flysystem is that it improves portability and creates a
+solid boundary between your application core and the infrastructure you use.
+The OOP-style handling breaks this principle, therefore I want to stop
+promoting it.