func FileSequence_Len(id FileSeqId) C.size_t {
	fs, ok := sFileSeqs.Get(id)
	if !ok {
		return 0
	}
	return C.size_t(fs.Len())
}
func FileSequence_Len(id FileSeqId) C.size_t {
	fs, ok := sFileSeqs.Get(id)
	if !ok {
		return 0
	}
	return C.size_t(fs.Len())
}
func FileSequence_Len ( id FileSeqId ) C . size_t { fs , ok := sFileSeqs . Get ( id ) if ! ok { return 0 } return C . size_t ( fs . Len ( ) ) }
//export FileSequence_Len
export FileSequence_Len