feat: support anthropic (non-streaming only) (#512)

Co-authored-by: Jason Liu <jason@jxnl.co>

examples/anthropic/run.py

@@ -0,0 +1,36 @@
+from pydantic import BaseModel
+from typing import List
+import anthropic
+import instructor
+
+# Patching the Anthropics client with the instructor for enhanced capabilities
+anthropic_client = instructor.patch(
+    create=anthropic.Anthropic().messages.create, mode=instructor.Mode.ANTHROPIC_TOOLS
+)
+
+
+class Properties(BaseModel):
+    key: str
+    value: str
+
+
+class User(BaseModel):
+    name: str
+    age: int
+    properties: List[Properties]
+
+
+user_response = anthropic_client(
+    model="claude-3-haiku-20240307",
+    max_tokens=1024,
+    max_retries=0,
+    messages=[
+        {
+            "role": "user",
+            "content": "Create a user for a model with a name, age, and properties.",
+        }
+    ],
+    response_model=User,
+)  # type: ignore
+
+print(user_response.model_dump_json(indent=2))