@Override
        public boolean equals(Object obj) {
            if (obj == this)
                return true;
            if (obj == null || obj.getClass() != this.getClass())
                return false;
            var that = (SchemaKey) obj;
            return Objects.equals(this.subject, that.subject) &&
                this.schemaId == that.schemaId;
        }
Phase 3: Process and retrieve the schema

@param topic    The Kafka topic
@param schemaId The schema ID
@param indexes  The message indexes
@return The protobuf schema wrapper
core/src/main/java/kafka/automq/table/deserializer/proto/AbstractCustomKafkaProtobufDeserializer.java