//
// We snapshot the entire set of resource variables as one atomic operation.
// This models Read->* dependencies between resource variable operations.  See
// jit/resource_operation_safety_analysis for details.
Status SnapshotResourceVariables(OpKernelContext* ctx,
                                 absl::Span<const int> variable_indices,
                                 absl::Span<VariableInfo const> variable_infos,

  variable_ptrs.reserve(variables.size());
  for (auto& var : variables) {
    variable_ptrs.push_back(&var);
  }
  return LockVariables(absl::MakeSpan(variable_ptrs));
}

Status SnapshotResourceVariables(OpKernelContext* ctx,
                                 absl::Span<const int> variable_indices,
                                 absl::Span<VariableInfo const> variable_infos,

                              *ctx, inputs, *constant_indices_or,
                              variable_indices, &variables, &args));
      OP_REQUIRES_OK(ctx, SnapshotResourceVariables(ctx, variable_indices,
                                                    variables, &variable_args));
    }

    XlaDeviceCompiler* xla_device_compiler;
    xla::LocalExecutable* executable;

                                 variable_indices, &variable_infos));
  TF_RETURN_IF_ERROR(LockVariables(absl::MakeSpan(variable_infos)));

  TF_RETURN_IF_ERROR(SnapshotResourceVariables(ctx, variable_indices,
                                               variable_infos, &result.second));

  TF_ASSIGN_OR_RETURN(result.first,