message: removed Parameters type
diff: @@ -129,8 +129,6 @@ where
  + ArgminScaledSub<T, f64>,
  BacktrackingLineSearch<T>: ArgminSolver<Parameters = T, OperatorOutput = f64>,
  {
  - type Parameters = T;
  -
  /// Set search direction
  fn set_search_direction(&mut self, search_direction: T) {
  self.search_direction = search_direction;
  