Fix compiler error. Need

Author: kirklandsign

examples/models/llava/runner/llava_runner.h

@@ -29,6 +29,29 @@ class LlavaRunner : public MultimodalRunner {
       const float temperature = 0.8f)
       : MultimodalRunner(model_path, tokenizer_path, temperature){};
 
+  bool is_loaded() override;
+  Error load() override;
+  Error generate(
+      std::vector<Image> images,
+      const std::string& prompt,
+      int32_t seq_len = 1024,
+      std::function<void(const std::string&)> token_callback = {},
+      std::function<void(const ::executorch::extension::llm::Stats&)>
+          stats_callback = {}) override;
+  Error prefill_images(std::vector<Image>& images, int64_t& start_pos) override;
+  Result<uint64_t> prefill_prompt(
+      const std::string& prompt,
+      int64_t& start_pos,
+      int8_t bos = 0,
+      int8_t eos = 0) override;
+  Error generate_from_pos(
+      const std::string& prompt,
+      int32_t seq_len = 1024,
+      int64_t start_pos = 0,
+      std::function<void(const std::string&)> token_callback = {},
+      std::function<void(const ::executorch::extension::llm::Stats&)>
+          stats_callback = {}) override;
+
  private:
   inline static const std::string kPresetPrompt =
       "A chat between a curious human and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the human's questions. USER: ";