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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 override_params(opening_char='{', closing_char='}', separator_char='|'):
 """ Override some character settings @type opening_char: str @param opening_char: Opening character. Default: '{' @type closing_char: str @param closing_char: Closing character. Default: '}' @type separator_char: str @param separator_char: Separator char. Default: '|' """

    global char_separator, char_opening, char_closing
    char_separator = separator_char
    char_opening = opening_char
    char_closing = closing_char