In the current implementation only cusp forms are supported.
VorData: Rec Default:
This creates the cuspidal subspace of the space of Bianchi modular forms over the field F (an imaginary quadratic field) on Γ0(N) with weight 2. The level N should be an ideal in the maximal order of F.The optional argument VorData may be set equal to VoronoiData(M) where M is a previously computed space of forms over the same field. This avoids repeating the time-consuming precomputations that depend only on the field.