class_docstr: Class returns a list of Ecat images, with one image(hdr/data) per frame
class_docstr_tok: ["Class","returns","a","list","of","Ecat","images",",","with","one","image","(","hdr\/data",")","per","frame"]
docstr: returns files specific to header and image of the image
  for ecat .v this is the same image file
  
  Returns
  -------
  header : file holding header data
  image : file holding image data
docstr_tok: ["returns","files","specific","to","header","and","image","of","the","image","for","ecat",".v","this","is","the","same","image","file","Returns","--","--","--","-","header",":","file","holding","header","data","image",":","file","holding","image","data"]
code: def _get_fileholders(file_map):
      """returns files specific to header and image of the image
      for ecat .v this is the same image file
  
      Returns
      -------
      header : file holding header data
      image : file holding image data
      """
      return file_map["header"], file_map["image"]
  
imports: import warnings
  from numbers import Integral
  import numpy
  from .arraywriters import make_array_writer
  from .fileslice import canonical_slicers, predict_shape, slice2outax
  from .spatialimages import SpatialHeader, SpatialImage
  from .volumeutils import array_from_file, make_dt_codes, native_code, swapped_code
  from .wrapstruct import WrapStruct
label_desc: Use image node_id 9 for calling the EcatImage obj's underlying member method code with example usage: obj._get_fileholders(file_map) and returns: file_map,  file_map