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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 format_symbol(self, symbol, link_resolver):
 """ Format a symbols.Symbol """

        if not symbol:
            return ''

        if isinstance(symbol, FieldSymbol):
            return ''

        # pylint: disable=unused-variable
        out = self._format_symbol(symbol)
        template = self.get_template('symbol_wrapper.html')

        return template.render(
            {'symbol': symbol,
             'formatted_doc': out})