Used to indicate whether "extra" event decodings -- event decodings from
non-library contracts other than the one that appears to have emitted
the event -- should be returned.
"off": Exclude extra decodings (the default).
"on": Include extra decodings.
"necessary": Include extra decodings only if there are no others.
Extra decodings will always be returned after other decodings.
Used to indicate whether "extra" event decodings -- event decodings from non-library contracts other than the one that appears to have emitted the event -- should be returned.
"off": Exclude extra decodings (the default)."on": Include extra decodings."necessary": Include extra decodings only if there are no others.Extra decodings will always be returned after other decodings.