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