allowedOutputs property
Returns assets that may be written in this build step.
Allowed outputs are formed by matching the inputId against the builder's
buildExtensions, which declares a list of output extensions for this
input.
The writing methods writeAsBytes and writeAsString will throw an
InvalidOutputException when attempting to write an asset not part of
the allowedOutputs.
Implementation
Iterable<AssetId> get allowedOutputs;