fix: schema file restored

semantic_router/schema.py

+from enum import Enum
+
+from pydantic import BaseModel
+from pydantic.dataclasses import dataclass
+
+from semantic_router.encoders import (
+    BaseEncoder,
+    CohereEncoder,
+    OpenAIEncoder,
+)
+
+
+class EncoderType(Enum):
+    HUGGINGFACE = "huggingface"
+    OPENAI = "openai"
+    COHERE = "cohere"
+
+
+class RouteChoice(BaseModel):
+    name: str | None = None
+    function_call: dict | None = None
+
+
+@dataclass
+class Encoder:
+    type: EncoderType
+    name: str | None
+    model: BaseEncoder
+
+    def __init__(self, type: str, name: str | None):
+        self.type = EncoderType(type)
+        self.name = name
+        if self.type == EncoderType.HUGGINGFACE:
+            raise NotImplementedError
+        elif self.type == EncoderType.OPENAI:
+            self.model = OpenAIEncoder(name)
+        elif self.type == EncoderType.COHERE:
+            self.model = CohereEncoder(name)
+        else:
+            raise ValueError
+
+    def __call__(self, texts: list[str]) -> list[list[float]]:
+        return self.model(texts)