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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 add_new_entry(self, entry):
        # type: (EltoritoEntry) -> None
        '''
        A method to add a completely new entry to the list of entries of this
        header.

        Parameters:
         entry - The new EltoritoEntry object to add to the list of entries.
        Returns:
         Nothing.
        '''
        if not self._initialized:
            raise pycdlibexception.PyCdlibInternalError('El Torito Section Header not yet initialized')

        self.num_section_entries += 1

        self.section_entries.append(entry)