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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 display_center(text, width, fillchar=' '):
 """ Return `text` centered in a Unicode string whose display width, in a monospaced terminal, should be at least `width` character cells. The rest of the string will be padded with `fillchar`, which must be a width-1 character. ▒▒▒▒▒Table flip▒▒▒▒▒ ▒▒▒(╯°□°)╯︵ ┻━┻▒▒▒▒ ▒▒▒▒ちゃぶ台返し▒▒▒▒ """

    if character_width(fillchar) != 1:
        raise ValueError("The padding character must have display width 1")

    text_width = monospaced_width(text)
    if text_width == -1:
        return text

    padding = max(0, width - text_width)
    left_padding = padding // 2
    right_padding = padding - left_padding
    return fillchar * left_padding + text + fillchar * right_padding