```ruby
class UsersController < ApplicationController
  def new
    @user = User.new
  end

  def create

  end
end
```

Create private method that gathers all of the required/permitted parameters for the user form
user
```ruby
class UsersController < ApplicationController
  def new
    @user = User.new
  end

  def create
  end

  private
    def user_params
      params.require(:user).permit(:username, :email, :password)
    end
end
```
assistant