Construct a ChemKED instance directly from a ReSpecTh file.

        Arguments:
            filename_xml (`str`): Filename of the ReSpecTh-formatted XML file to be imported
            file_author (`str`, optional): File author to be added to the list generated from the
                XML file
            file_author_orcid (`str`, optional): ORCID for the file author being added to the list
                of file authors

        Returns:
            `ChemKED`: Instance of the `ChemKED` class containing the data in ``filename_xml``.

        Examples:
            >>> ck = ChemKED.from_respecth('respecth_file.xml')
            >>> ck = ChemKED.from_respecth('respecth_file.xml', file_author='Bryan W. Weber')
            >>> ck = ChemKED.from_respecth('respecth_file.xml', file_author='Bryan W. Weber',
                                           file_author_orcid='0000-0000-0000-0000')

def from_respecth(cls, filename_xml, file_author='', file_author_orcid=''):
        """Construct a ChemKED instance directly from a ReSpecTh file.

        Arguments:
            filename_xml (`str`): Filename of the ReSpecTh-formatted XML file to be imported
            file_author (`str`, optional): File author to be added to the list generated from the
                XML file
            file_author_orcid (`str`, optional): ORCID for the file author being added to the list
                of file authors

        Returns:
            `ChemKED`: Instance of the `ChemKED` class containing the data in ``filename_xml``.

        Examples:
            >>> ck = ChemKED.from_respecth('respecth_file.xml')
            >>> ck = ChemKED.from_respecth('respecth_file.xml', file_author='Bryan W. Weber')
            >>> ck = ChemKED.from_respecth('respecth_file.xml', file_author='Bryan W. Weber',
                                           file_author_orcid='0000-0000-0000-0000')
        """
        properties = ReSpecTh_to_ChemKED(filename_xml, file_author, file_author_orcid,
                                         validate=False)
        return cls(dict_input=properties)