patpy.pp.calculate_n_cells_per_sample# patpy.pp.calculate_n_cells_per_sample(adata, sample_key)# Calculate the number of cells per sample in the given AnnData object. Parameters: adata (AnnData) – Annotated data object. sample_key (str) – Key for the sample information in adata.obs Return type: DataFrame Returns: -cell_counts (DataFrame) DataFrame containing the number of cells per sample in the columns “n_cells”