code: def setenv(name, value):
      """Set an environment variable in the C Runtime.
  
      Parameters
      ----------
      name : string type
          The environment variable name
      value : string type
          The desired value to set the environment value to
      """
      passed_value = None if value is None else c_str(value)
      check_call(_LIB.MXSetEnv(c_str(name), passed_value))
  
imports: import ctypes
  import functools
  import inspect
  import threading
  import tempfile
  import platform
  from contextlib import contextmanager
  from struct import calcsize
  from .base import _LIB, check_call, c_str, py_str, numeric_types, integer_types, long, _MAX_VALUE_64_BIT_UNSIGNED_, _MAX_VALUE_64_BIT_SIGNED_, _MAX_VALUE_FLOAT32_REPRESENT_
label_desc: Use image node_id 31 for calling a global function with example usage: setenv(name, value) without return types