private boolean hasExcludeTag(Shape shape) {
        return shape.getTags().stream().anyMatch(t -> settings.excludeTags().contains(t));
    }
Applies standard transforms to the model.
<dl>
    <dt>changeStringEnumsToEnumShapes</dt>
    <dd>Changes string enums to enum shapes for compatibility</dd>
    <dt>flattenAndRemoveMixins</dt>
    <dd>Ensures mixins are flattened into any generated traits or nested structures</dd>
</dl>
smithy-trait-codegen/src/main/java/software/amazon/smithy/traitcodegen/TraitCodegen.java