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Add concat functionality for usage #210

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Merged
merged 2 commits into from
Nov 19, 2025
Merged

Add concat functionality for usage #210

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9cd139c
Add concat functionality for usage
declan-scale Nov 19, 2025
80e3547
Fix lint
declan-scale Nov 19, 2025
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14 changes: 14 additions & 0 deletions src/agentex/lib/utils/completions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@

from agentex.lib.types.llm_messages import (
Delta,
Usage,
Choice,
ToolCall,
Completion,
Expand All @@ -21,6 +22,8 @@ def _concat_chunks(_a: None, b: Any):
@_concat_chunks.register
def _(a: Completion, b: Completion) -> Completion:
a.choices = [_concat_chunks(*c) for c in zip(a.choices, b.choices, strict=False)]
a.usage = _concat_chunks(a.usage, b.usage)

return a


Expand All @@ -35,6 +38,17 @@ def _(a: Choice, b: Choice) -> Choice:
a.finish_reason = a.finish_reason or b.finish_reason
return a

@_concat_chunks.register
def _(a: Usage | None, b: Usage | None) -> Usage | None:
if a is not None and b is not None:
return Usage(
prompt_tokens=a.prompt_tokens + b.prompt_tokens,
completion_tokens=a.completion_tokens + b.completion_tokens,
total_tokens=a.total_tokens + b.total_tokens,
)
else:
return a or b


@_concat_chunks.register
def _(a: Delta, b: Delta) -> Delta:
Expand Down