text: """
  API for updating Galaxy Pages
  """
  import logging
  
  from galaxy.managers.base import get_object
  from galaxy.managers.pages import PageManager
  from galaxy.web import expose_api
  from . import BaseGalaxyAPIController, depends
  
  log = logging.getLogger(__name__)
  
  
  class PageRevisionsController(BaseGalaxyAPIController):
      manager: PageManager = depends(PageManager)
  
      @expose_api
      def index(self, trans, page_id, **kwd):
          """
          index( self, trans, page_id, **kwd )
          * GET /api/pages/{page_id}/revisions
              return a list of Page revisions
  
          :param page_id: Display the revisions of Page with ID=page_id
  
          :rtype:     list
          :returns:   dictionaries containing different revisions of the page
          """
          page = get_object(trans, page_id, 'Page', check_ownership=False, check_accessible=True)
          r = trans.sa_session.query(trans.app.model.PageRevision).filter_by(page_id=page.id)
          out = []
          for page in r:
              as_dict = self.encode_all_ids(trans, page.to_dict(), True)
              self.manager.rewrite_content_for_export(trans, as_dict)
              out.append(as_dict)
          return out
  
      @expose_api
      def create(self, trans, page_id, payload, **kwd):
          """
          create( self, trans, page_id, payload **kwd )
          * POST /api/pages/{page_id}/revisions
              Create a new revision for a page
  
          :param page_id: Add revision to Page with ID=page_id
          :param payload: A dictionary containing::
              'content'   = New content of new page revision
  
          :rtype:     dictionary
          :returns:   Dictionary with 'success' or 'error' element to indicate the result of the request
          """
          page = get_object(trans, page_id, 'Page', check_ownership=True)
          page_revision = self.manager.save_new_revision(trans, page, payload)
          rval = self.encode_all_ids(trans, page_revision.to_dict(view="element"), True)
          self.manager.rewrite_content_for_export(trans, rval)
          return rval
  