docs: def fmod(x, y, context=None):
      """
      Return ``x`` reduced modulo ``y``.
  
      Returns the value of x - n * y, where n is the integer quotient of x
      divided by y, rounded toward zero.
  
      Special values are handled as described in Section F.9.7.1 of the ISO C99
      standard: If x is infinite or y is zero, the result is NaN. If y is
      infinite and x is finite, the result is x rounded to the current context.
      If the result is zero, it has the sign of x.
  
      """
      return _apply_function_in_current_context(
          BigFloat,
          mpfr.mpfr_fmod,
          (
              BigFloat._implicit_convert(x),
              BigFloat._implicit_convert(y),
          ),
          context,
      )