DocTestSetup = :(using Ferrite)
Pages = ["boundary_conditions.md"]
ConstraintHandler
Dirichlet
PeriodicDirichlet
collect_periodic_faces
collect_periodic_faces!
add!
close!
update!
apply!
apply_zero!
apply_local!
apply_assemble!
get_rhs_data
apply_rhs!
Ferrite.RHSData
apply_analytical!