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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 remove_pardir_symbols(path, sep=os.sep, pardir=os.pardir):
 """ Remove relative path symobls such as '..' Args: path (str):
 A target path string sep (str):
 A strint to refer path delimiter (Default: `os.sep`) pardir (str):
 A string to refer parent directory (Default: `os.pardir`) Returns: str """

    bits = path.split(sep)
    bits = (x for x in bits if x != pardir)
    return sep.join(bits)