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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 _create_value(self, data, name, spec):
 """ Create the value for a field. :param data: the whole data for the entity (all fields). :param name: name of the initialized field. :param spec: spec for the whole entity. """


        field = getattr(self, 'create_' + name, None)
        if field:
            # this factory has a special creator function for this field
            return field(data, name, spec)
        value = data.get(name)
        return spec.fields[name].clean(value)