chore: import upstream snapshot with attribution

vlm_service/code_def.py

@@ -0,0 +1,23 @@
+from enum import Enum
+from typing import Optional, List
+from dataclasses import dataclass
+
+class ErrorCode(str, Enum):
+    SUCCESS = "success"
+    INVLID_MESSAGE_FORMAT = "invalid message format. Message should contain images not pure text."
+    VIT_FAILED = "Failed to extract image features. "
+    PREFILL_TOO_LONG = "The context length exceeds the maximum limit."
+    DECODE_TOO_LONG = "Decoding exceeds maximum length."
+
+@dataclass
+class CustomGenerationResult:
+    text: str = ""
+    token: Optional[int] = None
+    logprobs: Optional[List[float]] = None
+    prompt_tokens: int = 0
+    generation_tokens: int = 0
+    total_tokens: int = 0
+    prompt_tps: float = 0.0
+    generation_tps: float = 0.0
+    peak_memory: float = 0.0
+    code: ErrorCode = ErrorCode.SUCCESS