code: def _get_G_3(G, n_orient):
      if n_orient == 1:
          return None
      else:
          return G.reshape(G.shape[0], -1, n_orient).transpose(1, 2, 0)
  
file_path: mne-python/mne/minimum_norm/_eloreta.py
imports: from functools import partial
  import numpy
  from ..defaults import _handle_default
  from ..fixes import _safe_svd
  from ..utils import eigh, logger, sqrtm_sym, warn
label_desc: Use image node_id 3 for calling a global function with example usage: _get_G_3(G, n_orient) and returns: None, G