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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_field(self, path, name):
 """ Retrieves the value of the field at the specified path. :param path: str or Path instance :param name: :type name: str :return: :raises ValueError: A component of path is a field name. :raises KeyError: A component of path doesn't exist. :raises TypeError: The field name is a component of a path. """

        try:
            value = self.get(path, name)
            if not isinstance(value, str):
                raise TypeError()
            return value
        except KeyError:
            raise KeyError()