->new($body)
$body is a hashref like:
{ 'C002' => {
'1001' => '231'
}
}
The top level should have only one composite ``Cxxx'' key.
Business::EDI::Composite(3)
EDI Composite class.
{ 'C002' => {
'1001' => '231'
}
}
The top level should have only one composite ``Cxxx'' key.