T23153.hs:8:1: error: [GHC-52083]
    The argument ‘(h ())’ of ‘f’
    cannot be assigned a fixed runtime representation, not even by defaulting.
    Suggested fix: Add a type signature.

T23153.hs:8:1: error: [GHC-52083]
    The argument ‘(h ())’ of ‘f’
    cannot be assigned a fixed runtime representation, not even by defaulting.
    Suggested fix: Add a type signature.

T23153.hs:8:1: error: [GHC-52083]
    The argument ‘(h ())’ of ‘f’
    cannot be assigned a fixed runtime representation, not even by defaulting.
    Suggested fix: Add a type signature.