In "Derived Algebraic Geometry and Deformation Quantization" Toën defines in 5.1.2 an $E_{n}$-monoidal A-linear dg-category as an $E_{n}$-monoid in the symmetric monoidal $\infty$-category $dgCat_{A}$ of compactly generated (A-linear) dg-categories.

Concretely, unwrapping this definition Toën says this is equivalent of having a dg-category $T\in dgCat_{A}$ and morphisms $E_{n}(k)\otimes T^{\otimes k}\to T$ satisfying the usual conditions of an algebra over an operad.

**Question**: What are these dg-categories $E_{n}(k)$?

I thought about turning the $\mathbb{E}_{n}$ operad defined by Lurie in Higher Algebra into a dg-category, but Im unsure if this would be correct or if it would be relatively easier than giving a direct definition.

I'm not very experienced in operads in general and $\infty-$operads in particular, so I apologize if the question has an immediate answer or if it comes from a fundamental misunderstanding of the topic.

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