package ETL::Import;

sub run( $class, $input_file, $table ) {
    my $payload = $class->convert_to_csv( $input_file );
    $class->cleanup( $payload );
    $class->load( $payload, $input_file, $table );
    $class->verify( $payload, $table );
};

##</code><code>##

package ETL::Import::CSV;

...

package ETL::Import::Fixed;

...