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 flush(self):
        if self._bufferedCommands is None:
            return
        self._connection.sendline(str(self._bufferedCommands))
        self._bufferedCommands = None