public abstract class PBXObject {
    @Nullable
    private String globalID;

    @Nullable
    public String getGlobalID() {
        return globalID;
    }

    public void setGlobalID(String gid) {
        globalID = gid;
    }

    /**
     * @return Type name of the serialized object.
     */
    public abstract String isa();

    /**

     *
     * @return the GID of the serialized object
     * @see PBXObject#serializeInto
     */
    private String serializeObject(PBXObject obj) {
        if (obj.getGlobalID() == null) {
            obj.setGlobalID(obj.generateGid(gidGenerator));
            LOG.trace("Set new object GID: {}", obj);
        } else {
            // Check that the object has already been serialized.

        target.setProductName(xcodeTarget.getProductName());

        target.setBuildToolPath(xcodeTarget.getGradleCommand());
        target.setBuildArgumentsString(buildGradleArgs(xcodeTarget));
        target.setGlobalID(xcodeTarget.getId());
        File outputFile = xcodeTarget.getDebugOutputFile().get().getAsFile();