public Optional<String> getRelativeDocumentation() {
        return Optional.ofNullable(relativeDocumentation);
    }
Gets the relative URL path for the action within a set of
IAM-related documentation.

@return Returns the relative URL path to documentation.
smithy-aws-iam-traits/src/main/java/software/amazon/smithy/aws/iam/traits/IamActionTrait.java