def METHOD_NAME():
    arg = "all tainted"
    input_info = Source("request_body", arg, OriginType.PARAMETER)
    tainted_text = taint_pyobject(arg, source_name="request_body", source_value=arg, source_origin=OriginType.PARAMETER)
    value_parts, sources = taint_ranges_as_evidence_info(tainted_text)
    assert value_parts == [{"value": tainted_text, "source": 0}]
    assert sources == [input_info]