@type t() :: %ExBifrost.Model.BifrostCacheDebug{
  cache_hit: boolean() | nil,
  cache_id: String.t() | nil,
  hit_type: String.t() | nil,
  input_tokens: integer() | nil,
  model_used: String.t() | nil,
  provider_used: String.t() | nil,
  requested_model: String.t() | nil,
  requested_provider: String.t() | nil,
  similarity: number() | nil,
  threshold: number() | nil
}