default byte priority() {
        return 0;
    }
Gets the priority ordering relative to the topologically ordered integration graph
determined by {@link #runBefore()} and {@link #runAfter()}.

<p>Higher numbers come before lower numbers.

<p>When ordering, implementations must not allow cycles, and no two integrations
may have the same name.

@return Returns the priority order.
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/SmithyIntegration.java