@Override
            public ValidationEvent decorate(ValidationEvent ev) {
                return modifyEventSeverity(model, ev, loadedSuppressions, loadedSeverityOverrides);
            }
Creates a ValidationEventDecorator for the given Model.

<p>Validators, suppressions, and severity overrides found in the model are used each time
{@link ValidationEventDecorator#decorate(ValidationEvent)} is called. The
{@link ValidationEventDecorator#canDecorate(ValidationEvent)} always returns true.

@param model Model to load validation events from.
@return Returns a decorator that can be used to modify the severity and suppression reason of each given event.
smithy-model/src/main/java/software/amazon/smithy/model/validation/suppressions/ModelBasedEventDecorator.java