class_docstr: Basic scaling Spm Analyze header
class_docstr_tok: ["Basic","scaling","Spm","Analyze","header"]
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["scl_slope"] = 1
      return hdr_data
  
imports: import warnings
  from io import BytesIO
  import numpy
  from .None import analyze
  from .batteryrunners import Report
  from .optpkg import optional_package
  from .spatialimages import HeaderDataError, HeaderTypeError
label_desc: Use image node_id 1 for calling the SpmAnalyzeHeader obj's underlying member method code with example usage: obj.default_structarr(klass, endianness) and returns: hdr_data