@Override
    public int hashCode() {
        return Objects.hash(url, properties, headers);
    }
Get the endpoint {@code authSchemes} property as a map of {@link Identifier} to {@link Literal} values.

@return the list of endpoint {@code authSchemes}.
smithy-rules-engine/src/main/java/software/amazon/smithy/rulesengine/language/Endpoint.java