code: public AnyValueArray getAsArray(String key) {
  		Object value = getAsObject(key);
  		return AnyValueArray.fromValue(value);
  	}
docs: Converts map element into an AnyValueArray or returns empty AnyValueArray if
  conversion is not possible.
  
  @param key a key of element to get.
  @return AnyValueArray value of the element or empty AnyValueArray if
  conversion is not supported.
  
  @see AnyValueArray
  @see AnyValueArray#fromValue(Object)