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## spo_loss.py
"""Scalar Preference Optimization."""

import torch
from torch.nn import functional as F


def logp_completion(logits, tokens, mask):
    """Compute the log probabilities of completions given their prompts.

    Args:
	"""Scalar Preference Optimization."""

	import torch
	from torch.nn import functional as F


	def logp_completion(logits, tokens, mask):
	"""Compute the log probabilities of completions given their prompts.

	Args: