You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

Amb Zhang said international solidarity is extremely important.  China has made enormous contribution to the world with concrete actions. All countries should adopt a responsible attitude, jointly combat the virus, and avoid overreaction. https://t.co/XgZgCXlK1m