Function vkGetExecutionGraphPipelineScratchSizeAMDX 

pub unsafe extern "system" fn vkGetExecutionGraphPipelineScratchSizeAMDX(
    device: VkDevice,
    executionGraph: VkPipeline,
    pSizeInfo: *mut VkExecutionGraphPipelineScratchSizeAMDX,
) -> VkResult

Available if built with prototypes.