You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sessions_controller.rb
    path of file: ./repos/qpixel/app/controllers/users
    
    the code of the file until where you have to start completion: class Users::SessionsCont
    
  def post_sign_in(user)
    # For a deleted user (banished), tell them non-specifically that there was a mistake with their credentials.
    if user.deleted?
      sign_out user
      flash[:notice] = nil
      flash[:danger] = 'Invalid Email or password.'
      render :new
      return false
    end