text: from ..preprocessing._extract import extract_CG, extract_CH
  from ..preprocessing._readimpute import load_met_noimput, imputation_met
  from ..preprocessing._readimpute import readandimputematrix
  from ..preprocessing._quality_control import coverage_cells, commonness_features, binarize
  from ..preprocessing._quality_control import correlation_pc, coverage_features, density_features
  from ..preprocessing._quality_control import select_var_feature, cal_var, variability_features
  from ..preprocessing._recipe import lazy
  from ..preprocessing._metadata import load_metadata
  from ..preprocessing._load_matrix import read_ATAC_10x
  from ..preprocessing._load_atac import load_peak_matrix, load_bedtool_matrix, load_atac_matrix
  from ..preprocessing._scanpy_fct import filter_cells, filter_features, normalize_total #, scale
  from ..preprocessing._scanpy_fct import pca, normalize_per_cell, regress_out, subsample, downsample_counts
  from ..preprocessing._neighbors import neighbors
  from ..preprocessing._simple import sparse
  from scanpy.api.pp import log1p
  