code: public static ConfluentRegistryAvroDeserializationSchema<GenericRecord> forGeneric(Schema schema, String url) {
  		return forGeneric(schema, url, DEFAULT_IDENTITY_MAP_CAPACITY);
  	}
docs: Creates {@link ConfluentRegistryAvroDeserializationSchema} that produces {@link GenericRecord}
  using provided reader schema and looks up writer schema in Confluent Schema Registry.
  
  @param schema schema of produced records
  @param url    url of schema registry to connect
  @return deserialized record in form of {@link GenericRecord}