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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 _load_from(self, line):
        '''load the From section of the recipe for the Dockerfile.
        '''
        # Remove any comments
        line = line.split('#',1)[0]        
        line = re.sub('(F|f)(R|r)(O|o)(M|m):','', line).strip()
        bot.info('FROM %s' %line)
        self.config['from'] = line