code: public long getLong(String key) throws LazyException{
  		LazyNode token=getFieldToken(key);
  		return token.getLongValue();
  	}
docs: Returns the long value stored in this object for the given key.
  
  @param key the name of the field on this object
  @return a boolean value
  @throws LazyException if the value for the given key was not a long.