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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 meth_wdl(args):
    ''' Retrieve WDL for given version of a repository method'''
    r = fapi.get_repository_method(args.namespace, args.method,
                                   args.snapshot_id, True)
    fapi._check_response_code(r, 200)
    return r.text