code: def forward(ctx, scratch, value, index):
      ctx.index = index
      scratch.data[index] = value  # sneak past the version checker
      return scratch
  
imports: import bisect
  import collections
  import torch
  from .event_handling import find_event
  from .interp import _interp_evaluate, _interp_fit
  from .misc import _compute_error_ratio, _select_initial_step, _optimal_step_size
  from .misc import Perturb
  from .solvers import AdaptiveStepsizeEventODESolver
label_desc: Use image node_id 1 for calling the _UncheckedAssign obj's underlying member method code with example usage: obj.forward(ctx, scratch, value, index) and returns: scratch