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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_files_exist(self, folder, resources):
 """ ensure that one or more resource files exist in a folder Parameters ========== folder: the folder to validate resources: one or more resources to validate within the folder """

        for item in resources:
            file_name = item.get('path')
            full_path = os.path.join(folder, file_name)
            if not os.path.isfile(full_path):
                raise ValueError('%s does not exist' % full_path)