def fft_irfft(context, node):
    """Lowers torch.fft.irfft by the dialect op `complex_irfft` from complex_dialect_ops.py."""
    input_data, n, dim, norm = _get_inputs(context, node, expected=[4])
    irfft_res = mb.complex_irfft(data=input_data, n=n, dim=dim, norm=norm)
    context.add(irfft_res, node.name)
Lowers torch.fft.irfft by the dialect op `complex_irfft` from complex_dialect_ops.py.
coremltools/converters/mil/frontend/torch/ops.py