EC_VERSION: 1,
  VK_KHR_DESCRIPTOR_UPDATE_TEMPLATE_SPEC_VERSION: 1,
  VK_NVX_DEVICE_GENERATED_COMMANDS_SPEC_VERSION: 3,
  VK_NV_CLIP_SPACE_W_SCALING_SPEC_VERSION: 1,
  VK_EXT_DIRECT_MODE_DISPLAY_SPEC_VERSION: 1,
  VK_EXT_ACQUIRE_XLIB_DISPLAY_SPEC_VERSION: 1,
  VK_EXT_DISPLAY_SURFACE_COUNTER_SPEC_VERSION: 1,
  VK_EXT_DISPLAY_CONTROL_SPEC_VERSION: 1,
  VK_GOOGLE_DISPLAY_TIMING_SPEC_VERSION: 1,
  VK_NV_SAMPLE_MASK_OVERRIDE_COVERAGE_SPEC_VERSION: 1,
  VK_NV_GEOMETRY_SHADER_PASSTHROUGH_SPEC_VERSION: 1,
  VK_NV_V