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Tensor density in sagemanifolds?

Hello community.

I've just realized that within the class TensorField there are subclasses DiffForm and MultivectorField. I was wondering whether a maximal (i.e. rank $n$ in $n$ dimensions) differential form or multivector field are considered as tensor densities. I'm thinking in the Levi-Civita epsilon.

Well, more generally... Is there a way to assign a density weight to a tensor?