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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 _update_tokens(self, write_token=True, override=None, patch_skip=False):
 """Update tokens to the next available values."""

        next_token = next(self.tokens)

        patch_value = ''
        patch_tokens = ''

        if self.pfile and write_token:
            token = override if override else self.token
            patch_value += token

        while next_token[0] in self.comment_tokens + whitespace:
            if self.pfile:
                if next_token[0] in self.comment_tokens:
                    while not next_token == '\n':
                        patch_tokens += next_token
                        next_token = next(self.tokens)
                patch_tokens += next_token

            # Several sections rely on StopIteration to terminate token search
            # If that occurs, dump the patched tokens immediately
            try:
                next_token = next(self.tokens)
            except StopIteration:
                if not patch_skip or next_token in ('=', '(', '%'):
                    patch_tokens = patch_value + patch_tokens

                if self.pfile:
                    self.pfile.write(patch_tokens)
                raise

        # Write patched values and whitespace + comments to file
        if not patch_skip or next_token in ('=', '(', '%'):
            patch_tokens = patch_value + patch_tokens

        if self.pfile:
            self.pfile.write(patch_tokens)

        # Update tokens, ignoring padding
        self.token, self.prior_token = next_token, self.token