code: def reshaped_mean_(self):
      if self.mean_ is None:
          return None
  
      return gs.reshape(self.mean_, self._init_shape[1:])
  
imports: from sklearn.decomposition import PCA
  from sklearn.linear_model import LinearRegression
  import geomstats.backend
label_desc: Use image node_id 4 for calling the WrappedPCA obj's underlying member method code with example usage: obj.reshaped_mean_() and returns: gs, None