∀ {𝕜 : Type u_2} {A : Type u_1} [inst : NontriviallyNormedField 𝕜] [inst_1 : NonUnitalNormedRing A]
  [inst_2 : NormedSpace 𝕜 A] [inst_3 : SMulCommClass 𝕜 A A] [inst_4 : IsScalarTower 𝕜 A A],
  NonUnitalRingHomClass (DoubleCentralizer 𝕜 A →+* (A →L[𝕜] A) × (A →L[𝕜] A)ᵐᵒᵖ) (DoubleCentralizer 𝕜 A)
    ((A →L[𝕜] A) × (A →L[𝕜] A)ᵐᵒᵖ)