docs: def asin(x, context=None):
      """
      Return the inverse sine of ``x``.
  
      The mathematically exact result lies in the range [-π/2, π/2].  However,
      note that as a result of rounding to the current context, it's possible
      for the actual value to lie just outside this range.
  
      """
      return _apply_function_in_current_context(
          BigFloat,
          mpfr.mpfr_asin,
          (BigFloat._implicit_convert(x),),
          context,
      )