Update CHANGELOG.

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [#58](https://github.com/NVIDIA/NeMo-Guardrails/issues/58): Fix install on Mac OS 13.
 - [#55](https://github.com/NVIDIA/NeMo-Guardrails/issues/55): Fix bug in example causing config.py to crash on computers with no CUDA-enabled GPUs.
 - Fixed the model name initialization for LLMs that use the `model` kwarg.
+- Fixed the Cohere prompt templates.
 
 
 ## [0.3.0] - 2023-06-30

nemoguardrails/llm/filters.py

@@ -151,30 +151,3 @@ def last_turns(colang_history: str, n: int) -> str:
  i -= 1
 
  return "\n".join(lines[i:])
-
-
-#
-# def last_turns(colang_history: str, n: int) -> str:
-# """Returns the last n turns from a given colang history."""
-# lines = colang_history.split("\n")
-# # Remove empty lines
-# lines = [line for line in lines if len(line.strip()) > 0]
-# lines.reverse()
-#
-# turn_count = 0
-# diads = []
-# last_diad_id = -1
-# i = 0
-# while i < len(lines):
-# if lines[i].startswith('user "'):
-# turn_count += 1
-# diad_turns = lines[last_diad_id + 1 : i + 1]
-# diad_turns.reverse()
-# diads.append("\n".join(diad_turns))
-# last_diad_id = i
-# if turn_count == n:
-# break
-# i += 1
-#
-# diads.reverse()
-# return "\n".join(diads)