Adding support for observability for OpenAI models

src/beyondllm/observe/__intit__.py

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+from .observe import Observer

src/beyondllm/observe/observe.py

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+from dataclasses import dataclass
+try:
+    import phoenix as px
+    from phoenix.trace.openai import OpenAIInstrumentor
+except ImportError:
+    user_agree = input("The feature you're trying to use requires additional packages. Would you like to install them now? [y/N]: ")
+    if user_agree.lower() == 'y':
+        import subprocess
+        import sys
+        subprocess.check_call([sys.executable, "-m", "pip", "install", "arize-phoenix[evals]"])
+
+        import phoenix as px
+        from phoenix.trace.openai import OpenAIInstrumentor
+    else:
+        raise ImportError("The required Phoenix packages are not installed.")
+
+
+
+@dataclass
+class Observer:
+    instrumentor: OpenAIInstrumentor = OpenAIInstrumentor()
+
+    def run(self):
+        self.instrumentor.instrument()
+        self.session = px.launch_app()
+