code: public LazyArray getJSONArray(String key) throws LazyException{
  		LazyNode token=getFieldToken(key);
  		if(token.type!=LazyNode.ARRAY)throw new LazyException("Requested value is not an array",token);
  		LazyArray arr=new LazyArray(token);
  		arr.parent=this;
  		return arr;
  	}
docs: Returns the JSON array stored in this object for the given key.
  
  @param key the name of the field on this object
  @return an array value
  @throws LazyException if the value for the given key was not an array.