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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 validate_xml(self) -> None: """Raise an error if the actual XML does not agree with one of the available schema files. # ToDo: should it be accompanied by a script function? The first example relies on a distorted version of the configuration file `single_run.xml`: template file: LahnH/single_run.xmlt target file: LahnH/single_run.xml replacements: firstdate --> 1996-01-32T00:00:00 (given argument) zip_ --> false (default argument) zip_ --> false (default argument) config_end --> </hpcsr:config> (default argument) Traceback (most recent call last):
 hydpy.core.objecttools.xmlschema.validators.exceptions.\ the following error occurred: failed validating '1996-01-32T00:00:00' with \ XsdAtomicBuiltin(name='xs:dateTime'). Reason: day is out of range for month Schema: Instance: <firstdate xmlns="https://github.com/hydpy-dev/hydpy/releases/\ download/your-hydpy-version/HydPyConfigBase.xsd">1996-01-32T00:00:00</firstdate> Path: /hpcsr:config/timegrid/firstdate In the second example, we examine a correct configuration file: template file: LahnH/single_run.xmlt target file: LahnH/single_run.xml replacements: firstdate --> 1996-01-01T00:00:00 (default argument) zip_ --> false (default argument) zip_ --> false (default argument) config_end --> </hpcsr:config> (default argument) The XML configuration file must correctly refer to the corresponding schema file: template file: LahnH/single_run.xmlt target file: LahnH/single_run.xml replacements: config_start --> <config> (given argument) firstdate --> 1996-01-01T00:00:00 (default argument) zip_ --> false (default argument) zip_ --> false (default argument) config_end --> </config> (given argument) Traceback (most recent call last):
 the following error occurred: Configuration file `single_run.xml` does not \ correctly refer to one of the available XML schema files \ (HydPyConfigSingleRun.xsd and HydPyConfigMultipleRuns.xsd). XML files based on `HydPyConfigMultipleRuns.xsd` can be validated as well: """

        try:
            filenames = ('HydPyConfigSingleRun.xsd',
                         'HydPyConfigMultipleRuns.xsd')
            for name in filenames:
                if name in self.root.tag:
                    schemafile = name
                    break
            else:
                raise RuntimeError(
                    f'Configuration file `{os.path.split(self.filepath)[-1]}` '
                    f'does not correctly refer to one of the available XML '
                    f'schema files ({objecttools.enumeration(filenames)}).')
            schemapath = os.path.join(conf.__path__[0], schemafile)
            schema = xmlschema.XMLSchema(schemapath)
            schema.validate(self.filepath)
        except BaseException:
            objecttools.augment_excmessage(
                f'While trying to validate XML file `{self.filepath}`')