No implicit conversion of symbol to number

[deadkarma]

In FbGraph2::Comment the from attribute is defined as a 'user' https://github.com/nov/fb_graph2/blob/master/lib/fb_graph2/comment.rb#L9

But a commenter can also be a 'Page'.
While a Page and User both can act very similarly, there's at least one attribute that is different:
The hometown attribute on a User is a Page, but for a Page, the hometown is a string, causing this error to happen on this line:

https://github.com/nov/fb_graph2/blob/master/lib/fb_graph2/attribute_assigner.rb#L71

@nov Would moving the from attribute to be custom make sense here?
I'm not sure how else to fix this.