| NUnivConstraint of loc * NUri.uri * NUri.uri
| NCopy of loc * string * NUri.uri * (NUri.uri * NUri.uri) list
| NCoercion of loc * string *
| NUnivConstraint of loc * NUri.uri * NUri.uri
| NCopy of loc * string * NUri.uri * (NUri.uri * NUri.uri) list
| NCoercion of loc * string *