+MonoType *
+mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error) MONO_INTERNAL;
+
+MonoMethodSignature*
+mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error) MONO_INTERNAL;
+