Mapping attribute in DynamoDBDocument that can be of type S or N does not work

[maxvandewiel]

I am unable to to Map a attribute in de DB Document that depending on the record/document in the DB is of type N, S OR M? Using Item gives me a empty result however the attribute in de document in the DB contains items.

i.e. { ... "data": { "M": { "value": { "S": "Word" } } }... }

{ ... "data": { "M": { "value": { "N": 244 } } }... }