Function vkCreateSharedSwapchainsKHR 

pub unsafe extern "system" fn vkCreateSharedSwapchainsKHR(
    device: VkDevice,
    swapchainCount: u32,
    pCreateInfos: *const VkSwapchainCreateInfoKHR,
    pAllocator: *const VkAllocationCallbacks,
    pSwapchains: *mut VkSwapchainKHR,
) -> VkResult

Available if built with prototypes.