if_wd_context_node&if_wd_context_element

Hi all,

I am a beginner of WDA, I am following some guides to build an easy WDA application.

I noticed that some tutorials use if_wd_context_element.

But in ATTRIBUTE tab of VIEW, you cannot find if_wd_context_element but if_wd_context_node.

And if_wd_context_node also has the methods like GET_ATTRIBUTE.

I have tried both and both of the two objects work correctly.

My question is:

Is this if_wd_context_element used for the old version of WDA and it may be not used now?