ActiveAdmin.register AdminUser do
  permit_params :email, :password, :password_confirmation
 
  index do
    selectable_column
    id_column
    column :email
    column :current_sign_in_at
    column :sign_in_count
    column :created_at
    actions
  end
 
  filter :email
  filter :current_sign_in_at
  filter :sign_in_count
  filter :created_at
 
  form do |f|
    f.inputs "Admin Details" do
      f.input :email
      f.input :password
      f.input :password_confirmation
    end
    f.actions
  end
 
end

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