error from pip install pymde

[zhoushican]

when I run the code

ov.pp.scale(adata)
ov.pp.pca(adata,layer='scaled',n_pcs=50)

adata.obsm["X_mde_pca"] = ov.utils.mde(adata.obsm["scaled|original|X_pca"])

the error：
ImportError: Please install pymde package via `pip install pymde

but when I pip install pymde， the following error occurred.

1. loosen the range of package versions you've specified
2. remove package versions to allow pip to attempt to solve the dependency conflict

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts