Ast_helper.Cty

`sig
val mk :
?loc:Ast_helper.loc ->
?attrs:Ast_helper.attrs ->
Parsetree.class_type_desc -> Parsetree.class_type
val attr :
Parsetree.class_type -> Parsetree.attribute -> Parsetree.class_type
val constr :
?loc:Ast_helper.loc ->
?attrs:Ast_helper.attrs ->
Ast_helper.lid -> Parsetree.core_type list -> Parsetree.class_type
val signature :
?loc:Ast_helper.loc ->
?attrs:Ast_helper.attrs ->
Parsetree.class_signature -> Parsetree.class_type
val arrow :
?loc:Ast_helper.loc ->
?attrs:Ast_helper.attrs ->
Asttypes.arg_label ->
Parsetree.core_type -> Parsetree.class_type -> Parsetree.class_type
val extension :
?loc:Ast_helper.loc ->
?attrs:Ast_helper.attrs -> Parsetree.extension -> Parsetree.class_type
val open_ :
?loc:Ast_helper.loc ->
?attrs:Ast_helper.attrs ->
Asttypes.override_flag ->
Ast_helper.lid -> Parsetree.class_type -> Parsetree.class_type
end`