pub unsafe extern "system" fn vkMergePipelineCaches(
device: VkDevice,
dstCache: VkPipelineCache,
srcCacheCount: u32,
pSrcCaches: *const VkPipelineCache,
) -> VkResultpub unsafe extern "system" fn vkMergePipelineCaches(
device: VkDevice,
dstCache: VkPipelineCache,
srcCacheCount: u32,
pSrcCaches: *const VkPipelineCache,
) -> VkResult