# Structs
ForbiddenImageReference is used when we don’t expect the ImageReference to be used in our tests.
ForbiddenImageSource is used when we don't expect the ImageSource to be used in our tests.
ForbiddenUnparsedImage is used when we don't expect the UnparsedImage to be used in our tests.
# Type aliases
NameImageTransport is a mock of types.ImageTransport which returns itself in Name.