How to use the graphql-transformer-core.revertAPIMigration function in graphql-transformer-core

await updateAndWaitForStack({ isCLIMigration });
  } catch (e) {
    await TransformPackage.revertAPIMigration(resourceDir, oldProjectConfig);
    throw e;
  }
  try {
    // After the intermediate update, we need the transform function
    // to look at this directory since we did not overwrite the currentCloudBackend with the build
    options.cloudBackendDirectory = resourceDir;
    await transformGraphQLSchema(context, options);
    const result = await updateAndWaitForStack({ isCLIMigration });
    context.print.info('\nFinished migrating API.');
    return result;
  } catch (e) {
    context.print.error('Reverting API migration.');
    await TransformPackage.revertAPIMigration(resourceDir, oldCloudBackend);
    try {
      await updateAndWaitForStack({ isReverting: true, isCLIMigration });
    } catch (e) {
      context.print.error('Error reverting intermediate migration stack.');
    }
    await TransformPackage.revertAPIMigration(resourceDir, oldProjectConfig);
    context.print.error('API successfully reverted.');
    throw e;
  }
}

// After the intermediate update, we need the transform function
    // to look at this directory since we did not overwrite the currentCloudBackend with the build
    options.cloudBackendDirectory = resourceDir;
    await transformGraphQLSchema(context, options);
    const result = await updateAndWaitForStack({ isCLIMigration });
    context.print.info('\nFinished migrating API.');
    return result;
  } catch (e) {
    context.print.error('Reverting API migration.');
    await TransformPackage.revertAPIMigration(resourceDir, oldCloudBackend);
    try {
      await updateAndWaitForStack({ isReverting: true, isCLIMigration });
    } catch (e) {
      context.print.error('Error reverting intermediate migration stack.');
    }
    await TransformPackage.revertAPIMigration(resourceDir, oldProjectConfig);
    context.print.error('API successfully reverted.');
    throw e;
  }
}

async function migrateProject(context, options) {
  const { resourceDir, isCLIMigration, cloudBackendDirectory } = options;
  const updateAndWaitForStack = options.handleMigration || (() => Promise.resolve('Skipping update'));
  let oldProjectConfig;
  let oldCloudBackend;
  try {
    context.print.info('\nMigrating your API. This may take a few minutes.');
    const { project, cloudBackend } = await TransformPackage.migrateAPIProject({
      projectDirectory: resourceDir,
      cloudBackendDirectory,
    });
    oldProjectConfig = project;
    oldCloudBackend = cloudBackend;
    await updateAndWaitForStack({ isCLIMigration });
  } catch (e) {
    await TransformPackage.revertAPIMigration(resourceDir, oldProjectConfig);
    throw e;
  }
  try {
    // After the intermediate update, we need the transform function
    // to look at this directory since we did not overwrite the currentCloudBackend with the build
    options.cloudBackendDirectory = resourceDir;
    await transformGraphQLSchema(context, options);
    const result = await updateAndWaitForStack({ isCLIMigration });
    context.print.info('\nFinished migrating API.');
    return result;
  } catch (e) {
    context.print.error('Reverting API migration.');
    await TransformPackage.revertAPIMigration(resourceDir, oldCloudBackend);
    try {
      await updateAndWaitForStack({ isReverting: true, isCLIMigration });
    } catch (e) {