pub trait HyperviscoelasticFiniteElementBlock<C, F, const G: usize, const N: usize>where
C: Hyperviscoelastic,
F: HyperviscoelasticFiniteElement<C, G, N>,
Self: ElasticHyperviscousFiniteElementBlock<C, F, G, N>,{
// Required method
fn helmholtz_free_energy(
&self,
nodal_coordinates: &NodalCoordinatesBlock,
) -> Result<Scalar, ConstitutiveError>;
}