The below code is in java, and is a method for finding the depth of an AVL tree. I am having trouble implementing the method, as lines 196 & 197 keep giving me an error that says "node" cannot be resolved to a variable. I have tried several of the recommended IDE fixes, but none of them have worked so far, so I can only assume that I am missing something somewhere. Could you please help me fix this so it no longer throws this error?

176 177 /* > BEGIN: Augmented public methods rightDepth) return (leftDepth +1); else return (rightDepth 1); 206 207 208 209 210 211 212h return Depth (null)