Sphinxbio nls/add plate chain template (#12502)

Co-authored-by: Nicholas Larus-Stone <7347808+nlarusstone@users.noreply.github.com>
Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>

templates/plate-chain/plate_chain/utils.py

@@ -0,0 +1,31 @@
+import json
+
+from pydantic import BaseModel, Field, conint
+
+
+class LLMPlateResponse(BaseModel):
+    row_start: conint(ge=0) = Field(
+        ..., description="The starting row of the plate (0-indexed)"
+    )
+    row_end: conint(ge=0) = Field(
+        ..., description="The ending row of the plate (0-indexed)"
+    )
+    col_start: conint(ge=0) = Field(
+        ..., description="The starting column of the plate (0-indexed)"
+    )
+    col_end: conint(ge=0) = Field(
+        ..., description="The ending column of the plate (0-indexed)"
+    )
+    contents: str
+
+
+def parse_llm_output(result: str):
+    """
+    Based on the prompt we expect the result to be a string that looks like:
+
+    '[{"row_start": 12, "row_end": 19, "col_start": 1, \
+    "col_end": 12, "contents": "Entity ID"}]'
+
+    We'll load that JSON and turn it into a Pydantic model
+    """
+    return [LLMPlateResponse(**plate_r) for plate_r in json.loads(result)]