class_docstr: Class for NIfTI2 header
  
  NIfTI2 is a slightly simplified variant of NIfTI1 which replaces 32-bit
  floats with 64-bit floats, and increases some integer widths to 32 or 64
  bits.
class_docstr_tok: ["Class","for","NIfTI2","header","NIfTI2","is","a","slightly","simplified","variant","of","NIfTI1","which","replaces","32-bit","floats","with","64-bit","floats",",","and","increases","some","integer","widths","to","32","or","64","bits","."]
docstr: Create empty header binary block with given endianness
docstr_tok: ["Create","empty","header","binary","block","with","given","endianness"]
code: def default_structarr(klass, endianness=None):
      """Create empty header binary block with given endianness"""
      hdr_data = super().default_structarr(endianness)
      hdr_data["eol_check"] = (13, 10, 26, 10)
      return hdr_data
  
imports: import numpy
  from .analyze import AnalyzeHeader
  from .batteryrunners import Report
  from .filebasedimages import ImageFileError
  from .nifti1 import Nifti1Header, Nifti1Image, Nifti1Pair
  from .spatialimages import HeaderDataError
label_desc: Use image node_id 3 for calling the Nifti2Header obj's underlying member method code with example usage: obj.default_structarr(klass, endianness) and returns: hdr_data