SPM: adding package to another package

[triple7]

Hey, first off great repo man. Was about to write a swift wrapper then I saw your spam :)

Just having an issue with below message: product 'whisper.spm' required by package 'swiftwhisper' target 'SwiftWhisperTests' not found in package 'whisper.spm'.

The line where it's hanging is: .testTarget( name: "SwiftWhisperTests", dependencies: ["SwiftWhisper", .product(name: "whisper.spm", package: "whisper.spm")]), ]

I tried whisper.cpp as package or product but that doesn't work. Is there another name to be included? as the normal target dependency works.