docs: private static boolean mockitoInvocation(Tree tree, VisitorState state) {
      if (!(tree instanceof JCMethodInvocation)) {
        return false;
      }
      JCMethodInvocation invocation = (JCMethodInvocation) tree;
      if (!(invocation.getMethodSelect() instanceof JCFieldAccess)) {
        return false;
      }
      ExpressionTree receiver = ASTHelpers.getReceiver(invocation);
      return MOCKITO_MATCHER.matches(receiver, state);
    }