class_docstr: Class for AFNI header
code: def from_fileobj(klass, fileobj):
      info = parse_AFNI_header(fileobj)
      return klass(info)
  
imports: import os
  import re
  from copy import deepcopy
  import numpy
  from .arrayproxy import ArrayProxy
  from .fileslice import strided_scalar
  from .spatialimages import HeaderDataError, ImageDataError, SpatialHeader, SpatialImage
  from .volumeutils import Recoder
label_desc: Use image node_id 3 for calling the AFNIHeader obj's underlying member method code with example usage: obj.from_fileobj(klass, fileobj) and returns: klass