docs: def yn(n, x, context=None):
      """
      Return the value of the second kind Bessel function of order ``n`` at
      ``x``.
  
      ``n`` should be a Python integer.
  
      """
      return _apply_function_in_current_context(
          BigFloat,
          mpfr.mpfr_yn,
          (n, BigFloat._implicit_convert(x)),
          context,
      )