docs: def create_or_update(ctx, model, xmlid, values):
      """ Create or update a record matching xmlid with values """
      if isinstance(model, basestring):
          model = ctx.env[model]
  
      record = ctx.env.ref(xmlid, raise_if_not_found=False)
      if record:
          record.update(values)
      else:
          record = model.create(values)
          add_xmlid(ctx, record, xmlid)
      return record