SYNOPSIS use Hash::DefHash::Normalize qw(normalize_defhash); my $ndh = normalize_defhash($dh); FUNCTIONS normalize_defhash($dh[, \%opts ]) => HASH Normalize and check DefHash $dh (a hashref). Return normalized hash, which is a shallow copy of $dh. Die on error. Available options: * remove_internal_properties => BOOL (default: 0) If set to 1, all properties and attributes starting with underscore (_) with will be stripped. According to DefHash specification, they are ignored and usually contain notes/comments/extra information. SEE ALSO DefHash