def adata():
    adata = ad.AnnData(np.zeros((100, 100)))
    adata.obsm["o"] = np.zeros((100, 50))
    adata.varm["o"] = np.zeros((100, 50))
    return adata
def lock_temp(self, key):
    self.lock(key)
    try:
      yield
    finally:
      self.unlock(key)