By Jody Godoy (Reuters) – An attorney for investors suing Credit Suisse Group AG told a jury in U.S. court on Tuesday that chats between traders prove the world’s largest banks colluded to fix prices in the foreign exchange market between 2007 and 2013. Credit Suisse is the last bank defendant remaining in the class action that began in 2013, after 15 others reached $2.31 billion of settlements. Investors have accused Credit Suisse traders of sharing nonpublic pricing information with traders at other banks, including in chat rooms with names such as “Yen Cartel.” “Trust the chats, the chats w…