pub type PFN_vkCmdUpdateBuffer = unsafe extern "system" fn(command_buffer: CommandBuffer, dst_buffer: Buffer, dst_offset: DeviceSize, data_size: DeviceSize, p_data: *const c_void);
pub type PFN_vkCmdUpdateBuffer = unsafe extern "system" fn(command_buffer: CommandBuffer, dst_buffer: Buffer, dst_offset: DeviceSize, data_size: DeviceSize, p_data: *const c_void);