use Type::Params2;
use Types::Standard -types;

signature_for function_with_positional_parameters => (
  pos => [ ArrayRef, Int, Int ],
);

sub function_with_positional_parameters {
  my ( $list, $start, $end ) = @_;

  my @slice = @{$list}[ $start .. $end ];
  return \@slice;
}

signature_for function_with_named_parameters => (
  named => [ list => ArrayRef, start => Int, end => Int ],
);

sub function_with_named_parameters {
  my ( $arg ) = @_;

  my @slice = @{$arg->list}[ $arg->start .. $arg->end ];
  return \@slice;
}