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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_field_embedded_doc(node):
 """Returns de ClassDef for the related embedded document in a embedded document field."""


    definition = get_field_definition(node)
    cls_name = definition.last_child().last_child()
    cls = next(cls_name.infer())
    return cls