message: Add invalid characters to list of characters to remove when sanitizing dataset
  node names.
diff: @@ -2720,7 +2720,7 @@ class StructuredFunctionWrapper(object):
  function_utils.get_func_name(func)])
  # Sanitize function name to remove symbols that interfere with graph
  # construction.
  - for symbol in ["<", ">"]:
  + for symbol in ["<", ">", "\\", "'", " "]:
  func_name = func_name.replace(symbol, "")
  ag_ctx = autograph_ctx.control_status_ctx()
  