Kontsevich's holonomic-module and Lagrangian-subvariety conjecture

Let $W_n$ be the $n$-th Weyl algebra, let irreducible holonomic $\mathcal D$-modules mean irreducible holonomic modules over $W_n$, and let Lagrangian subvarieties be taken in the affine space of the corresponding dimension. Kontsevich's holonomic-module conjecture. There is a one-to-one correspondence between irreducible holonomic $\mathcal D$-modules over $W_n$ and Lagrangian subvarieties of the affine space of corresponding dimension.

This conjecture connects holonomic $\mathcal D$-modules with their geometric characteristic data. The source states that one direction is known through work of Bitoun and Van den Bergh, that the one-dimensional case has been studied, and that results of Dodd imply a version of the conjecture; the general status is not established by the supplied information.