docs: def get_stackdelta(op):
    """
    Returns the number of elements that the instruction *op* adds to the stack.
  
    # Arguments
    op (dis.Instruction): The instruction to retrieve the stackdelta value for.
  
    # Raises
    KeyError: If the instruction *op* is not supported.
    """
  
    res = opstackd[op.opname]
    if callable(res):
      res = res(op)
    return res