THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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It will confuse users there are two similar methods (TypeSerializerSnapshot#resolveSchemaCompatibility and Typeserializer#resolveSchemaCompatibility).
So we need to deprecate TypeSerializerSnapshot#resolveSchemaCompatibilitypropose deprecating TypeSerializerSnapshot#resolveSchemaCompatibility for the long run.
In the step 2, we need to
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