I've created a decorator in my Rails application. However, the initializer has 3 params. Is this generally acceptable in decorator or should I refactor this or try a different pattern?

    class FileBinderDecorator
      attr_reader :binder, :credential, :page
    
      def initialize(binder, credential, page = 1)
        @binder = binder
        @credential = credential
        @page = page
      end
    
      def file_items
        file_items = credential.file_item_list(excluded_ids: binder.file_items.pluck(:id))
        file_items.page(page).per(7)
      end
    
      def method_missing(method_name, *args, &block)
        @binder.send(method_name, *args, &block)
      end
    
      def missing_responds_to?(method_name, include_private = false)
        @binder.respond_to?(method_name, include_private) || super
      end
    end

### manage.html.slim

    .modal.binder-modal.fade data-selected-ids=[] [id="edit-files-modal"]
      .modal-dialog
        .modal-content
          .modal-header
            button.close aria-label="Close" data-dismiss="modal" type="button"
              span aria-hidden="true"  ×
            h4.modal-title Edit Files
          .modal-body
            .container-fluid
              .row-fluid
                .credentials
                  = select_tag 'credentials', options_from_collection_for_select(credentials_for_current_user_and_account(current_user, @account), :first, :last)
                  .selectors
                    .file-box-select-all
                      = link_to 'Select All', '#'
                    .file-box-deselect-all
                      = link_to 'Deselect All', '#'
              .row-fluid
                .list-group[class="binder-#{decorator.id}"]
                  = render partial: 'file_binders/filebox', locals: { file_items: decorator.file_items, binder: decorator.binder, credential: decorator.credential }
              .row-fluid
                .text-center
                  .pagerx[class="pager-#{decorator.id}"]
                    = render partial: 'file_binders/pager', locals: { file_items: decorator.file_items, binder: decorator.binder, credential: decorator.credential }
          .modal-footer
            button.add-selected.btn.btn-primary class="add-selected-#{decorator.id}" data-dismiss='modal' data-count=0 data-file-items=[]
              | Remove Selected
            button.btn.btn-cancel aria-label="Close" id="modalCloseButton#{decorator.id}" data-dismiss="modal" type="button" aria-hidden="true" Cancel