Function CGContextDrawImageApplyingToneMapping 

pub unsafe extern "C-unwind" fn CGContextDrawImageApplyingToneMapping(
    c: &CGContext,
    r: CGRect,
    image: &CGImage,
    method: CGToneMapping,
    options: Option<&CFDictionary>,
) -> bool

👎Deprecated: renamed to CGContext::draw_image_applying_tone_mapping

Available on crate features CGContext and CGImage and CGToneMapping only.