@SuppressWarnings("unchecked")
    @Override
    public final IReadWriteStream<ApiResponse> getResponseDataHandler(ApiResponse response,
            IPolicyContext context, Object policyConfiguration) {
        return responseDataHandler(response, context, (C) policyConfiguration);
    }
@see io.apiman.gateway.engine.policy.IDataPolicy#getResponseDataHandler(io.apiman.gateway.engine.beans.ApiResponse, io.apiman.gateway.engine.policy.IPolicyContext, java.lang.Object)
gateway/engine/policies/src/main/java/io/apiman/gateway/engine/policies/AbstractMappedDataPolicy.java