engine
Specifies details about what platform to restore during a prepare.
Attributes(type) Only for platform:
Description name(string)
Required Name of the platform to be restored spec(string)
Required Details about the platform to be restored. This could be a major.minor.patch version number, a directory containing the platform or a url pointing to a git repository. This information will be used to retrieve the platform code to restore from NPM, a local directory or a git repository. See