my $flow_id = $data{partners}{$part_id}{flow};
for my $wfref (@{$data{flows}{$flow_id}}) {
#...
}
While not necessary here, you can always break things down further:
my $partner = $data{partners};
my $flow_id = $partner->{$part_id}{flow};
my $flows_ref = $data{flows}{$flow_id}};
for my $wfref (@$flows_ref) {
#...
}
or
my $flow_id = $data{partners}{$part_id}{flow};
my $flows_ref = $data{flows}{$flow_id}};
for my $wfref (@$flows_ref) {
#...
}
But in this case, I don't see why flows and partners are in the same structure
Change %{$data{flows }} to just %flows.
Change %{$data{partners}} to just %partners.
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