Dumps
Flare hooks into the Symfony VarDumper and records every value that passes through it. Any call to dump(), or anything else that ends up in VarDumper::dump(), is captured automatically and attached to the current trace or error report. There is nothing to call yourself.
You can disable this behaviour by calling ignoreDumps() on the Flare config:
$config->ignoreDumps();
You can configure the maximum number of dumps tracked while collecting data in the case of an error as such:
$config->collectDumps(maxItemsWithErrors: 10);