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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_color_mode(mode):
 """Convert PIL mode to ColorMode."""

    name = mode.upper()
    name = name.rstrip('A')  # Trim alpha.
    name = {'1': 'BITMAP', 'L': 'GRAYSCALE'}.get(name, name)
    return getattr(ColorMode, name)