docstr: Sets the number of iterations at each pyramid level
  
  Establishes the maximum number of iterations to be performed at each
  level of the Gaussian pyramid, similar to ANTS.
  
  Parameters
  ----------
  level_iters : list
      the number of iterations at each level of the Gaussian pyramid.
      level_iters[0] corresponds to the finest level, level_iters[n-1]
      the coarsest, where n is the length of the list
code: def set_level_iters(self, level_iters):
      """Sets the number of iterations at each pyramid level
  
      Establishes the maximum number of iterations to be performed at each
      level of the Gaussian pyramid, similar to ANTS.
  
      Parameters
      ----------
      level_iters : list
          the number of iterations at each level of the Gaussian pyramid.
          level_iters[0] corresponds to the finest level, level_iters[n-1]
          the coarsest, where n is the length of the list
      """
      self.levels = len(level_iters) if level_iters else 0
      self.level_iters = level_iters
  
imports: import logging
  import abc
  import numpy
  import numpy.linalg
  import nibabel
  from nibabel.streamlines import ArraySequence
  from dipy.align import vector_fields
  from dipy.align import floating
  from dipy.align import VerbosityLevels
  from dipy.align import Bunch
  from dipy.align.scalespace import ScaleSpace
label_desc: Use image node_id 2 for calling the DiffeomorphicRegistration obj's underlying member method code with example usage: obj.set_level_iters(level_iters) without return types