'f': "f32",
	'h': "u8",
	'i': "isize",
	'j': "usize",
	'l': "i32",
	'm': "u32",
	'n': "i128",
	'o': "u128",
	'p': "_",
	's': "i16",
	't': "u16",
	'u': "()",
	'v': "...",
	'x': "i64",
	'y': "u64",
	'z': "!",
}

// basicType parses:
//
//	<basic-type>
func (rst *rustState) basicType() {
	if len(rst.str) < 1 {
		rst.fail("expected basic type")
	}

  ElementsAttr axis;
  if (!matchPattern(tf_concat_op.getAxis(), m_Constant(&axis)))
    return failure();
  IntegerAttr axis_int = ExtractSingleElementAsInteger(axis);

  // "axis" operand could be a i64 tensor. Resolve it here.
  IntegerAttr axis_i32;
  if (failed(ConvertToI32Attr(axis_int, &axis_i32))) return failure();

  StringAttr fused_activation_function =
      StringAttr::get(rewriter.getContext(), "NONE");

	Std           bool // is standard library package

	// state for writing objects
	Text []*LSym
	Data []*LSym

	// Constant symbols (e.g. $i64.*) are data symbols created late
	// in the concurrent phase. To ensure a deterministic order, we
	// add them to a separate list, sort at the end, and append it
	// to Data.
	constSyms []*LSym