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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 load_file(self, path):
 """Load a YAML file with parameter data and other metadata. :param path: Path to YAML file. :type path: str The data in the YAML file is used to set the properties for the instance. The YAML file must contain a ``parameters`` key. It may optionally include any keys defined in :attr:`.property_keys`. .. code-block:: yaml # data.yml --- name: Shield frequencies parameters: - name: a value: 24.50 - name: β value: 42.10 meta: phase_inverted: true .. code-block:: python parameters = Parameters('data.yml') parameters.name #=> 'Shield frequencies' parameters.get_value('a') #=> 24.50 parameters.get_meta('β')['phase_inverted'] #=> true """

        data = yaml.load(open(path, 'r'))
        for key in self.property_keys:
            if key in data: setattr(self, key, data[key])
        self.parameters = self.parameter_list(data['parameters'])