%p
  Bonjour,

%p
  - number_of_groups = @group.procedure.groupe_instructeurs.many? ? 'many_groups' : 'one_group'
  = t(".email_body.#{number_of_groups}", groupe: @group.label, email: @current_instructeur_email, procedure: @group.procedure.libelle)

= render partial: "layouts/mailers/signature"