{𝕜 : Type u_1} →
  {A : Type u_2} →
    [inst : NontriviallyNormedField 𝕜] →
      [inst_1 : NonUnitalNormedRing A] →
        [inst_2 : NormedSpace 𝕜 A] →
          [inst_3 : SMulCommClass 𝕜 A A] →
            [inst_4 : IsScalarTower 𝕜 A A] →
              [inst_5 : StarRing 𝕜] →
                [inst_6 : StarRing A] → [StarModule 𝕜 A] → [NormedStarGroup A] → Star (DoubleCentralizer 𝕜 A)