`cellxgene_census.get_anndata()` should have an argument `X_layers`

[pablo-gar]

To load any additional layers from Census to an AnnData via cellxgene_census.get_anndata(), the method should have an argument X_layers

[bkmartinjr]

There already is an X_name which provides the ability to ask for an alternate layer - how is this different?

[pablo-gar]

Goes directly into X_layers arg of to_anndata i.e. adds those as additional layers under AnnData.layers on top of X_name that goes to AnnData.X

[bkmartinjr]

got it - so the use case is exporting multiple layers.