code: protected function initializeFromBuilder(Builder $builder)
      {
          $this->builder->setModel($builder->getModel())
              ->setEagerLoads($builder->getEagerLoads());
  
          $this->baseTable = $this->builder->getModel()->getTable();
          $this->baseModel = $this->builder->getModel();
          $this->modelClass = get_class($this->builder->getModel());
  
          $this->joinResolver = new JoinResolver($this);
      }
docs: Add the model, scopes, eager loaded relationships, local macro's and onDelete callback
  from the $builder to this query builder.
  
  @param \Illuminate\Database\Eloquent\Builder $builder