public Builder timestampValidationStrategy(TimestampValidationStrategy timestampValidationStrategy) {
            this.timestampValidationStrategy = timestampValidationStrategy;
            return this;
        }
Sets the strategy used to validate timestamps.

<p>By default, timestamps are validated using
{@link TimestampValidationStrategy#FORMAT}.

@param timestampValidationStrategy Timestamp validation strategy.
@return Returns the builder.
smithy-model/src/main/java/software/amazon/smithy/model/validation/NodeValidationVisitor.java