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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 uniformat(value):
 """Convert a Unicode char."""


    if value in GROUP_ESCAPES:
        # Escape characters that are (or will be in the future) problematic
        c = "\\x%02x\\x%02x" % (0x5c, value)
    elif value <= 0xFF:
        c = "\\x%02x" % value
    elif value <= 0xFFFF:
        c = "\\u%04x" % value
    else:
        c = "\\U%08x" % value
    return c