[Model] Initialize Fuyu-8B support (#3924)

Co-authored-by: Roger Wang <ywang@roblox.com>

examples/fuyu_example.py

@@ -0,0 +1,31 @@
+import requests
+from PIL import Image
+
+from vllm import LLM, SamplingParams
+
+
+def run_fuyu():
+    llm = LLM(model="adept/fuyu-8b", max_model_len=4096)
+
+    # single-image prompt
+    prompt = "What is the highest life expectancy at of male?\n"
+    url = "https://huggingface.co/adept/fuyu-8b/resolve/main/chart.png"
+    image = Image.open(requests.get(url, stream=True).raw)
+    sampling_params = SamplingParams(temperature=0, max_tokens=64)
+
+    outputs = llm.generate(
+        {
+            "prompt": prompt,
+            "multi_modal_data": {
+                "image": image
+            },
+        },
+        sampling_params=sampling_params)
+
+    for o in outputs:
+        generated_text = o.outputs[0].text
+        print(generated_text)
+
+
+if __name__ == "__main__":
+    run_fuyu()