pub fn session_cost_usd() -> f64Expand description
Estimate the running cost (USD) of the current session, using the
global crate::telemetry::TOKEN_USAGE counters and
pricing_for_model. Applies provider-specific prompt-cache
multipliers via cache_read_multiplier and cache_write_multiplier.
Assumes prompt_tokens in the counter already excludes cached input —
which is how crate::telemetry::AtomicTokenCounter::record_model_usage_with_cache
is invoked from every provider adapter.