support for json data as completion

src/axolotl/prompt_strategies/completion.py

@@ -1,6 +1,7 @@
 """
 Basic completion text
 """
+import json
 from collections import defaultdict
 from typing import Any, Dict, Generator, Optional, Tuple
 
@@ -64,6 +65,19 @@ def _build_full_prompt(
         return next(iter(self.prompter.build_prompt(instruction, input, response)))
 
 
+class CompletionJSONPromptTokenizationStrategy(CompletionPromptTokenizingStrategy):
+    """
+    Strategy to return the stringified JSON of the entire row as the training data
+    """
+
+    def parse_instruction_fields(self, prompt) -> Tuple[str, str, str]:
+        return (
+            json.dumps(prompt),
+            "",
+            "",
+        )
+
+
 class CompletionPrompter:
     """
     Prompter for completion
@@ -82,11 +96,23 @@ def load(tokenizer, cfg, ds_cfg: Optional[Dict[str, Any]] = None):
     strat = CompletionPromptTokenizingStrategy(
         CompletionPrompter(),
         tokenizer,
-        cfg.train_on_inputs,
+        True,
         cfg.sequence_len,
         max_length=cfg.sequence_len * 64,
     )
     if ds_cfg and "field" in ds_cfg:
         strat.field = ds_cfg["field"]
 
     return strat
+
+
+def load_json(tokenizer, cfg):
+    strat = CompletionJSONPromptTokenizationStrategy(
+        CompletionPrompter(),
+        tokenizer,
+        True,
+        cfg.sequence_len,
+        max_length=cfg.sequence_len * 64,
+    )
+
+    return strat