use JSON::MaybeXS;
my $data = JSON::MaybeXS->new->decode('{"foo": true, "bar": false, "baz": 1}');
+diag 'true is: ', explain $data->{foo};
+diag 'false is: ', explain $data->{bar};
+
ok(
JSON::MaybeXS::is_bool($data->{foo}),
JSON() . ': true decodes to a bool',