code: def _get_minval(size, signed=True):
      if not signed:
          return 0
      elif size == 1:
          return -0x80
      elif size == 2:
          return -0x8000
      elif size == 4:
          return -0x80000000
  
imports: import math
  import struct
  from ctypes import create_string_buffer
label_desc: Use image node_id 9 for calling a global function with example usage: _get_minval(size, signed) and returns: int, unknown, unknown, unknown