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Added: Operator overloads for Request Usage #4864

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19 changes: 19 additions & 0 deletions python/packages/autogen-core/src/autogen_core/models/_types.py
Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,25 @@ class RequestUsage:
prompt_tokens: int
completion_tokens: int

def __add__(self, other: "RequestUsage") -> "RequestUsage":
# Runtime type check ensures robustness, even though static analysis indicates unreachable code.
if not isinstance(other, RequestUsage):
raise TypeError(
f"Unsupported operand type(s) for +: 'RequestUsage' and '{type(other).__name__}'"
)
return RequestUsage(
prompt_tokens=self.prompt_tokens + other.prompt_tokens,
completion_tokens=self.completion_tokens + other.completion_tokens,
)

def __iadd__(self, other: "RequestUsage") -> "RequestUsage":
# Runtime type check ensures robustness, even though static analysis indicates unreachable code.
if not isinstance(other, RequestUsage):
return NotImplemented
self.prompt_tokens += other.prompt_tokens
self.completion_tokens += other.completion_tokens
return self


FinishReasons = Literal["stop", "length", "function_calls", "content_filter"]

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