Update deferring.rst

[9uzman7]

It took me a long time to figure out that context: Context should also be in the method_name signature. I vaguely updated the docs, but it would be nice to add somewhere that context should be part of method_name signature

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[potiuk]

It's in all the examples above and below so I think just explicitly mentioning it is ok.

[uranusjr]

I think the context argument was taken for granted because it is also given to execute, and only event is “added” to subsequent methods. Maybe we should mention execute here to make it more explicit.

[9uzman7]

I think the context argument was taken for granted because it is also given to execute, and only event is “added” to subsequent methods. Maybe we should mention execute here to make it more explicit.

that was what took to me to think that context was in the example, because the example is execute_complete which execute takes context, so it made sense to keep using context 🙃

[9uzman7]

@dirrao @pankajastro thanks for the approvals! not sure who can merge this in

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