@property
    def field_specifier(self):

        # Ensure that the keyword exists and has been parsed--the will set the
        # internal _field_specifier attribute if this is a RVKC.
        if self.keyword:
            return self._field_specifier
        else:
            return None
Load the content of a JSON file and
dataset/ETHPy150Open spacetelescope/PyFITS/pyfits/card.py/Card.field_specifier--crossover with--dataset/ETHPy150Open gepd/Deviot/libs/JSONFile.py/JSONFile.loadData