code: def __reduce__(self):
      return _pam_from_attrs, (
          self.__class__,
          self.sphere,
          self.peak_indices,
          self.peak_values,
          self.peak_dirs,
          self.gfa,
          self.qa,
          self.shm_coeff,
          self.B,
          self.odf,
      )
  
imports: import tempfile
  from multiprocessing import Pool
  from itertools import repeat
  from os import path
  import numpy
  import scipy.optimize
  from dipy.reconst.odf import gfa
  from dipy.reconst.recspeed import local_maxima, remove_similar_vertices, search_descending
  from dipy.core.sphere import Sphere
  from dipy.data import default_sphere
  from dipy.core.ndindex import ndindex
  from dipy.reconst.shm import sh_to_sf_matrix
  from dipy.reconst.eudx_direction_getter import EuDXDirectionGetter
  from dipy.utils.multiproc import determine_num_processes
  from dipy.utils.deprecator import deprecated_params
label_desc: Use image node_id 1 for calling the PeaksAndMetrics obj's underlying member method code with example usage: obj.__reduce__() and returns: _pam_from_attrs,  self,  self,  self,  self,  self,  self,  self,  self,  self,  self