Who is rat in wind in the willows?

In "The Wind in the Willows" by Kenneth Grahame, Rat, also known as Ratty, is a water-loving character who represents friendship and adventure. He is a water vole and serves as a loyal companion to Mole, guiding him through various escapades along the river. Rat is known for his love of boating and his laid-back demeanor, often enjoying leisurely days on the water. His strong bond with Mole and other characters highlights themes of camaraderie and the joys of nature.