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Description
Added support for tests. Namely introduced a way of how to check whether overlay widget is present or not.
This is done by specifying overlay widget key, which is a
ValueKey
of global key provided by user for hisShowcase
widget (see test from this PR for more details).Checklist
fix:
,feat:
,docs:
etc).docs
and added dartdoc comments with///
.examples
ordocs
.Migration instructions