t() ::
  %Wax.Metadata.Statement.VerificationMethodDescriptor.BiometricAccuracyDescriptor{
    block_slowdown: non_neg_integer(),
    eer: float(),
    faar: float(),
    far: float(),
    frr: float(),
    max_reference_data_sets: non_neg_integer(),
    max_retries: non_neg_integer()
  }