How to use the pbxproj.XcodeProject function in pbxproj

def testSaveOnDefaultPath(self):
        XcodeProject({}, "results/default").save()

        self.assertTrue(os.path.exists("results/default"))

def testSaveOnGivenPath(self):
        XcodeProject().save("results/sample")

        self.assertTrue(os.path.exists("results/sample"))

def testGetIds(self):
        project = XcodeProject({'objects':{'1':{'isa':'a'}, '2':{'isa':'a'}}})

        self.assertListEqual(project.get_ids(), ['1', '2'])

def testGetTargetByNameExisting(self):
        project = XcodeProject(self.obj)

        target = project.get_target_by_name('app')
        self.assertEqual(target, project.objects['1'])

def testGetTargetByNameNonExisting(self):
        project = XcodeProject(self.obj)

        target = project.get_target_by_name('non-existing')
        self.assertIsNone(target)

def testGetBuildPhasesByName(self):
        project = XcodeProject(self.obj)

        build_phases = project.get_build_phases_by_name('PBXGenericBuildPhase')
        self.assertEqual(build_phases.__len__(), 2)

def testGetBuildFilesForFile(self):
        project = XcodeProject(self.obj)

        build_files = project.get_build_files_for_file('file1')
        self.assertListEqual(build_files, [project.objects['build_file1']])

def testBackup(self):
        project = XcodeProject({}, 'results/default')
        project.save('results/default')
        backup_name = project.backup()

        self.assertRegexpMatches(backup_name, '_[0-9]{6}-[0-9]{6}\\.backup')

pbx_frameworks = list(set(pbx_frameworks))
    pbx_libraries = list(set(pbx_libraries))
    libraries = list(set(libraries))

    logger.info("-" * 70)
    logger.info("The project need to have:")
    logger.info("iOS Frameworks: {}".format(pbx_frameworks))
    logger.info("iOS Libraries: {}".format(pbx_libraries))
    logger.info("iOS local Frameworks: {}".format(frameworks))
    logger.info("Libraries: {}".format(libraries))
    logger.info("Sources to link: {}".format(sources))

    logger.info("-" * 70)
    logger.info("Analysis of {}".format(filename))

    project = XcodeProject.load(filename)
    sysroot = sh.xcrun("--sdk", "iphonesimulator", "--show-sdk-path").strip()

    group = project.get_or_create_group("Frameworks")
    g_classes = project.get_or_create_group("Classes")
    file_options = FileOptions(embed_framework=False, code_sign_on_copy=True)
    for framework in pbx_frameworks:
        framework_name = "{}.framework".format(framework)
        if framework_name in frameworks:
            logger.info("Ensure {} is in the project (pbx_frameworks, local)".format(framework))
            f_path = join(ctx.dist_dir, "frameworks", framework_name)
        else:
            logger.info("Ensure {} is in the project (pbx_frameworks, system)".format(framework))
            f_path = join(sysroot, "System", "Library", "Frameworks",
                          "{}.framework".format(framework))
        project.add_file(f_path, parent=group, tree="DEVELOPER_DIR",
                         force=False, file_options=file_options)