code: def _get_context_name(self, app=None):
          
          elements = [
              self.__class__.__name__,
              'context',
              text_type(id(self)),
          ]
  
          if app:
              elements.append(text_type(id(app)))
          else:
              try:
                  elements.append(text_type(id(self.app)))
              except RuntimeError:
                  pass
  
          return '_'.join(elements)
docs: Generate the name of the context variable for this component & app.
  
          Because we store the ``context`` in a Local so the component
          can be used across multiple apps, we cannot store the context on the
          instance itself. This function will generate a unique and predictable
          key in which to store the context.
  
          Returns:
              str: The name of the context variable to set and get the context
                  from.