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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 rm(self, line):
 """ Remove all occurrences of 'line' from contents where 'line' is an entire line or a list of lines. Return true if the file was changed by rm(), False otherwise. Multi-line strings are converted to a list delimited by new lines. :param line: String, or List of Strings; each string represents an entire line to be removed from file. :return: Boolean, whether contents were changed. """

        self.log('rm({0})'.format(line))
        if line is False:
            return False
        if isinstance(line, str):
            line = line.split('\n')
        if not isinstance(line, list):
            raise TypeError("Parameter 'line' not a 'string' or 'list', is {0}".format(type(line)))
        local_changes = False
        for this in line:
            if this in self.contents:
                while this in self.contents:
                    self.log('Removed "{0}" from position {1}'.format(this, self.contents.index(this)))
                    self.contents.remove(this)
                    self.changed = local_changes = True
            else:
                self.log('"{0}" not in {1}'.format(this, self.filename))
        if self.sorted and local_changes:
            self.sort()
        return local_changes