int device_ordinal = -1;

    // The name of the compilation device, also referred to as jit_device_type.
    // (e.g., "XLA_CPU_JIT");
    std::string compilation_device_name;

    // A vector of ShapeDeterminationFn (i.e., a bundle of LayoutSelectionFn,
    // ShapeRepresentationFn). Each bundle describes how the on-host shapes of
    // a) argument and return value, for entry computations b) variables, for