public TomcatServiceBuilder engineName(String engineName) {
        this.engineName = requireNonNull(engineName, "engineName");
        return this;
    }
Sets the name of the {@link StandardEngine} of an embedded Tomcat. {@link #serviceName(String)} will be
used instead if not set.
tomcat10/src/main/java/com/linecorp/armeria/server/tomcat/TomcatServiceBuilder.java