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  virtual absl::Status AddFunctionDef(const FunctionDef& fdef) = 0;

  // Notifies about the function removal.
  virtual absl::Status AddRemoveFunctionNotifier(
      const string& func, std::function<void()> notifier) = 0;

  // Same as `AddFunctionDef`, but additionally saves the `stack_traces` under
  // the key of the function definition name (to be retrieved during function
  // instantiation).

in Source or Object form, provided that You meet the following conditions: 

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of this License; and 

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You changed the files; and 

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distribute, all copyright, patent, trademark, and attribution notices from