my $pagesize = $options->{pagesize} || 50;
my $context = $options->{context } // 1 + ($pagesize >> 4);
my $length = $options->{length } || 4;
my $pagesize = $options->{pagesize} || 50;
my $context = $options->{context } // 1 + ($pagesize >> 4);
my $length = $options->{length } || 4;