How to use the @angular/cli/utilities/json-schema.parseJsonSchemaToOptions function in @angular/cli

return Object.keys(schematicCollection).map(schematicName => {
    const schematic = {
      name: schematicName,
      collectionName: `@nrwl/${config.name}`,
      ...schematicCollection[schematicName],
      alias: schematicCollection[schematicName].hasOwnProperty('aliases')
        ? schematicCollection[schematicName]['aliases'][0]
        : null,
      rawSchema: fs.readJsonSync(
        path.join(config.root, schematicCollection[schematicName]['schema'])
      )
    };

    return parseJsonSchemaToOptions(registry, schematic.rawSchema)
      .then(options => ({ ...schematic, options }))
      .catch(error =>
        console.error(
          `Can't parse schema option of ${schematic.name}:\n${error}`
        )
      );
  });
}

return Object.keys(schematicCollection).map(schematicName => {
    const schematic = {
      name: schematicName,
      ...schematicCollection[schematicName],
      alias: schematicCollection[schematicName].hasOwnProperty('alias')
        ? schematicCollection[schematicName]['alias']
        : null,
      rawSchema: fs.readJsonSync(
        path.join(config.root, schematicCollection[schematicName]['schema'])
      )
    };

    return parseJsonSchemaToOptions(registry, schematic.rawSchema)
      .then(options => ({ ...schematic, options }))
      .catch(error =>
        console.error(
          `Can't parse schema option of ${schematic.name}:\n${error}`
        )
      );
  });
}