pub type PFN_vkGetClusterAccelerationStructureBuildSizesNV = unsafe extern "system" fn(_device: Device, _info: *const ClusterAccelerationStructureInputInfoNV, _size_info: *mut AccelerationStructureBuildSizesInfoKHR);pub type PFN_vkGetClusterAccelerationStructureBuildSizesNV = unsafe extern "system" fn(_device: Device, _info: *const ClusterAccelerationStructureInputInfoNV, _size_info: *mut AccelerationStructureBuildSizesInfoKHR);