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da548d308c
Co-authored-by: Tim O'Farrell <tofarr@gmail.com> Co-authored-by: Engel Nyst <enyst@users.noreply.github.com> Co-authored-by: Robert Brennan <accounts@rbren.io> Co-authored-by: Graham Neubig <neubig@gmail.com>
68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
import time
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from pydantic import BaseModel, Field
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class Cost(BaseModel):
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model: str
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cost: float
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timestamp: float = Field(default_factory=time.time)
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class Metrics:
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"""Metrics class can record various metrics during running and evaluation.
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Currently, we define the following metrics:
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accumulated_cost: the total cost (USD $) of the current LLM.
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"""
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def __init__(self, model_name: str = 'default') -> None:
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self._accumulated_cost: float = 0.0
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self._costs: list[Cost] = []
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self.model_name = model_name
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@property
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def accumulated_cost(self) -> float:
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return self._accumulated_cost
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@accumulated_cost.setter
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def accumulated_cost(self, value: float) -> None:
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if value < 0:
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raise ValueError('Total cost cannot be negative.')
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self._accumulated_cost = value
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@property
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def costs(self) -> list[Cost]:
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return self._costs
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def add_cost(self, value: float) -> None:
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if value < 0:
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raise ValueError('Added cost cannot be negative.')
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self._accumulated_cost += value
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self._costs.append(Cost(cost=value, model=self.model_name))
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def merge(self, other: 'Metrics') -> None:
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self._accumulated_cost += other.accumulated_cost
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self._costs += other._costs
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def get(self) -> dict:
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"""Return the metrics in a dictionary."""
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return {
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'accumulated_cost': self._accumulated_cost,
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'costs': [cost.model_dump() for cost in self._costs],
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}
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def reset(self):
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self._accumulated_cost = 0.0
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self._costs = []
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def log(self):
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"""Log the metrics."""
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metrics = self.get()
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logs = ''
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for key, value in metrics.items():
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logs += f'{key}: {value}\n'
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return logs
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def __repr__(self):
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return f'Metrics({self.get()}'
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