ruby - When rendering json in rails, how can I exclude an entry from an included association? -

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i have following line...

render json: { user: @user.as_json(except: :password_digest, include: :currency), token: token}

however, except element included currency association. how can this?

render json: { user: @user.as_json( except: :password_digest,   include: { currency: { except: :your_element } } ), token: :token }

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