code: def update(self, values, **context):
          
          schema = self.schema()
          column_updates = {}
          other_updates = {}
          for key, value in values.items():
              try:
                  column_updates[schema.column(key)] = value
              except orb.errors.ColumnNotFound:
                  other_updates[key] = value
  
          # update the columns in order
          for col in sorted(column_updates.keys(), key=lambda x: x.order()):
              self.set(col, column_updates[col], **context)
  
          # update the other values
          for key, value in other_updates.items():
              try:
                  self.set(key, value, **context)
              except orb.errors.ColumnValidationError:
                  pass
  
          return len(values)
docs: Updates the model with the given dictionary of values.
  
          :param values: <dict>
          :param context: <orb.Context>
  
          :return: <int>