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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 get(self):
 """Retrieve a formated text string"""

        output = ''
        for f in self.functions:
            output += self.underline(f) + '\n\n'
            if f in self.synopsises and isinstance(self.synopsises[f], str):
                output += self.format(self.synopsises[f]) + '\n'
            if f in self.descriptions and isinstance(
                self.descriptions[f], str
            ):
                output += self.format(self.descriptions[f], indent=8) + '\n'
            if f in self.examples and isinstance(self.examples[f], str):
                output += self.format(self.examples[f], indent=8) + '\n'
            output += '\n'
        return output