code: def non_zero_suffix(b):
      """Returns the longest suffix of b that starts with a non-zero
      byte."""
      i = 0
      while i < len(b) and b[i] == 0:
          i += 1
      return b[i:]
  
imports: from collections import defaultdict
  from typing import TYPE_CHECKING, Callable, Dict, Optional
  import attr
  from hypothesis.internal.compat import int_from_bytes, int_to_bytes
  from hypothesis.internal.conjecture.choicetree import ChoiceTree, prefix_selection_order, random_selection_order
  from hypothesis.internal.conjecture.data import DRAW_FLOAT_LABEL, ConjectureData, ConjectureResult, Status
  from hypothesis.internal.conjecture.dfa import ConcreteDFA
  from hypothesis.internal.conjecture.floats import float_to_lex, lex_to_float
  from hypothesis.internal.conjecture.junkdrawer import binary_search, find_integer, replace_all
  from hypothesis.internal.conjecture.shrinking import Float, Integer, Lexical, Ordering
  from hypothesis.internal.conjecture.shrinking.learned_dfas import SHRINKING_DFAS
label_desc: Use image node_id 6 for calling a global function with example usage: non_zero_suffix(b) and returns: b