Hush warning messages in a Jupyter Notebook

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# suppress specific warnings
import warnings
# from numba.core.errors import NumbaDeprecationWarning
warnings.filterwarnings(action="ignore", module="scanpy", message="No data for colormapping")
# warnings.filterwarnings(action="ignore", category=NumbaDeprecationWarning)
warnings.simplefilter("ignore", category=UserWarning)
warnings.filterwarnings("ignore", category=DeprecationWarning)
# or simply ignore all
warnings.filterwarnings("ignore")