code: def read_dev_header(x):
      """Create a dev header."""
      return dict(
          size=read_int32(x),
          checksum=read_int32(x),
          reserved=read_str(x, 32),
      )
  
imports: import numpy
  from ..._fiff.utils import read_str
label_desc: Use image node_id 19 for calling a global function with example usage: read_dev_header(x) and returns: dict