code: def ihfft(a, n=None, axis=-1, norm=None):
      if n is None:
          n = a.shape[axis]
      norm = _swap_direction(norm)
      output = ivy.conj(rfft(a, n, axis, norm=norm).ivy_array)
      return output
  
file_path: ivy/ivy/functional/frontends/numpy/fft/discrete_fourier_transform.py
imports: import ivy
  from ivy.functional.frontends.numpy.func_wrapper import to_ivy_arrays_and_back
  from ivy.func_wrapper import with_unsupported_dtypes
label_desc: Use image node_id 9 for calling a global function with example usage: ihfft(a, n, axis, norm) and returns: output