ON: 1,
  VK_KHR_EXTENSION_249_SPEC_VERSION: 0,
  VK_NV_COOPERATIVE_MATRIX_SPEC_VERSION: 1,
  VK_NV_COVERAGE_REDUCTION_MODE_SPEC_VERSION: 1,
  VK_NV_EXTENSION_252_SPEC_VERSION: 0,
  VK_EXT_YCBCR_IMAGE_ARRAYS_SPEC_VERSION: 1,
  VK_KHR_UNIFORM_BUFFER_STANDARD_LAYOUT_SPEC_VERSION: 1,
  VK_EXT_EXTENSION_255_SPEC_VERSION: 0,
  VK_EXT_FULL_SCREEN_EXCLUSIVE_SPEC_VERSION: 3,
  VK_EXT_HEADLESS_SURFACE_SPEC_VERSION: 0,
  VK_EXT_EXTENSION_258_SPEC_VERSION: 0,
  VK_EXT_EXTENSION_259_SPEC_VERSION: 0,
  VK_EXT_EXTENSION_2