Error "Unknown type 'bool'" in migration AddAdminPaymentToSpreeBraintreeCheckout

[ToTenMilan]

this migration:

class AddAdminPaymentToSpreeBraintreeCheckout < SpreeExtension::Migration[4.2]
  def change
    add_column :spree_braintree_checkouts, :admin_payment, :bool
  end
end

raises error and can not dump schema

# db/schema.rb
# Could not dump table "spree_braintree_checkouts" because of following StandardError
#   Unknown type 'bool' for column 'admin_payment'