10 #ifdef MOOSE_MFEM_ENABLED    22   void ApplyBC(mfem::GridFunction & gridfunc) 
override;
 const InputParameters & parameters() const
Get the parameters of the object. 
~MFEMVectorDirichletBC() override=default
static InputParameters validParams()
MFEMVectorDirichletBC(const InputParameters ¶meters)
void ApplyBC(mfem::GridFunction &gridfunc) override
Apply the essential BC, overwritign the values of gridfunc on the boundary as desired.