isort wip 2

installer/lib/main.py

@@ -5,6 +5,7 @@ InvokeAI Installer
 import argparse
 import os
 from pathlib import Path
+
 from installer import Installer
 
 if __name__ == "__main__":

invokeai/backend/__init__.py

@@ -1,5 +1,5 @@
 """
 Initialization file for invokeai.backend
 """
-from .model_management import ModelManager, ModelCache, BaseModelType, ModelType, SubModelType, ModelInfo  # noqa: F401
+from .model_management import BaseModelType, ModelCache, ModelInfo, ModelManager, ModelType, SubModelType  # noqa: F401
 from .model_management.models import SilenceWarnings  # noqa: F401

invokeai/backend/image_util/invisible_watermark.py

@@ -3,12 +3,13 @@ This module defines a singleton object, "invisible_watermark" that
 wraps the invisible watermark model. It respects the global "invisible_watermark"
 configuration variable, that allows the watermarking to be supressed.
 """
-import numpy as np
 import cv2
-from PIL import Image
+import numpy as np
 from imwatermark import WatermarkEncoder
-from invokeai.app.services.config import InvokeAIAppConfig
+from PIL import Image
+
 import invokeai.backend.util.logging as logger
+from invokeai.app.services.config import InvokeAIAppConfig
 
 config = InvokeAIAppConfig.get_config()
 

invokeai/backend/image_util/patchmatch.py

@@ -5,6 +5,7 @@ wraps the actual patchmatch object. It respects the global
 be suppressed or deferred
 """
 import numpy as np
+
 import invokeai.backend.util.logging as logger
 from invokeai.app.services.config import InvokeAIAppConfig
 

invokeai/backend/image_util/safety_checker.py

@@ -5,10 +5,11 @@ configuration variable, that allows the checker to be supressed.
 """
 import numpy as np
 from PIL import Image
-from invokeai.backend import SilenceWarnings
-from invokeai.app.services.config import InvokeAIAppConfig
-from invokeai.backend.util.devices import choose_torch_device
+
 import invokeai.backend.util.logging as logger
+from invokeai.app.services.config import InvokeAIAppConfig
+from invokeai.backend import SilenceWarnings
+from invokeai.backend.util.devices import choose_torch_device
 
 config = InvokeAIAppConfig.get_config()
 

invokeai/backend/install/check_root.py

@@ -2,9 +2,8 @@
 Check that the invokeai_root is correctly configured and exit if not.
 """
 import sys
-from invokeai.app.services.config import (
-    InvokeAIAppConfig,
-)
+
+from invokeai.app.services.config import InvokeAIAppConfig
 
 
 def check_invokeai_root(config: InvokeAIAppConfig):

invokeai/backend/install/invokeai_configure.py

@@ -6,16 +6,13 @@
 #
 # Coauthor: Kevin Turner http://github.com/keturn
 #
-import sys
 import argparse
 import io
 import os
-import psutil
 import shutil
+import sys
 import textwrap
-import torch
 import traceback
-import yaml
 import warnings
 from argparse import Namespace
 from enum import Enum
@@ -25,26 +22,25 @@ from typing import get_type_hints, get_args, Any
 from urllib import request
 
 import npyscreen
-import transformers
 import omegaconf
+import psutil
+import torch
+import transformers
+import yaml
 from diffusers import AutoencoderKL
 from diffusers.pipelines.stable_diffusion.safety_checker import StableDiffusionSafetyChecker
 from huggingface_hub import HfFolder
 from huggingface_hub import login as hf_hub_login
 from omegaconf import OmegaConf
+from pydantic.error_wrappers import ValidationError
 from tqdm import tqdm
-from transformers import (
-    CLIPTextModel,
-    CLIPTextConfig,
-    CLIPTokenizer,
-    AutoFeatureExtractor,
-    BertTokenizerFast,
-)
-import invokeai.configs as configs
+from transformers import AutoFeatureExtractor, BertTokenizerFast, CLIPTextConfig, CLIPTextModel, CLIPTokenizer
 
-from invokeai.app.services.config import (
-    InvokeAIAppConfig,
-)
+import invokeai.configs as configs
+from invokeai.app.services.config import InvokeAIAppConfig
+from invokeai.backend.install.legacy_arg_parsing import legacy_parser
+from invokeai.backend.install.model_install_backend import InstallSelections, ModelInstall, hf_download_from_pretrained
+from invokeai.backend.model_management.model_probe import BaseModelType, ModelType
 from invokeai.backend.util.logging import InvokeAILogger
 from invokeai.frontend.install.model_install import addModelsForm, process_and_execute
 
@@ -58,16 +54,12 @@ from invokeai.frontend.install.widgets import (
     CyclingForm,
     MIN_COLS,
     MIN_LINES,
+    CenteredButtonPress,
+    CyclingForm,
+    FileBox,
     WindowTooSmallException,
+    set_min_terminal_size,
 )
-from invokeai.backend.install.legacy_arg_parsing import legacy_parser
-from invokeai.backend.install.model_install_backend import (
-    hf_download_from_pretrained,
-    InstallSelections,
-    ModelInstall,
-)
-from invokeai.backend.model_management.model_probe import ModelType, BaseModelType
-from pydantic.error_wrappers import ValidationError
 
 warnings.filterwarnings("ignore")
 transformers.logging.set_verbosity_error()

invokeai/backend/install/migrate_to_3.py

@@ -3,33 +3,26 @@ Migrate the models directory and models.yaml file from an existing
 InvokeAI 2.3 installation to 3.0.0.
 """
 
-import os
 import argparse
+import os
 import shutil
-import yaml
-
-import transformers
-import diffusers
 import warnings
-
 from dataclasses import dataclass
 from pathlib import Path
-from omegaconf import OmegaConf, DictConfig
 from typing import Union
 
-from diffusers import StableDiffusionPipeline, AutoencoderKL
+import diffusers
+import transformers
+import yaml
+from diffusers import AutoencoderKL, StableDiffusionPipeline
 from diffusers.pipelines.stable_diffusion.safety_checker import StableDiffusionSafetyChecker
-from transformers import (
-    CLIPTextModel,
-    CLIPTokenizer,
-    AutoFeatureExtractor,
-    BertTokenizerFast,
-)
+from omegaconf import DictConfig, OmegaConf
+from transformers import AutoFeatureExtractor, BertTokenizerFast, CLIPTextModel, CLIPTokenizer
 
 import invokeai.backend.util.logging as logger
 from invokeai.app.services.config import InvokeAIAppConfig
 from invokeai.backend.model_management import ModelManager
-from invokeai.backend.model_management.model_probe import ModelProbe, ModelType, BaseModelType, ModelProbeInfo
+from invokeai.backend.model_management.model_probe import BaseModelType, ModelProbe, ModelProbeInfo, ModelType
 
 warnings.filterwarnings("ignore")
 transformers.logging.set_verbosity_error()

invokeai/backend/install/model_install_backend.py

@@ -7,23 +7,23 @@ import warnings
 from dataclasses import dataclass, field
 from pathlib import Path
 from tempfile import TemporaryDirectory
-from typing import Optional, List, Dict, Callable, Union, Set
+from typing import Callable, Dict, List, Optional, Set, Union
 
 import requests
+import torch
 from diffusers import DiffusionPipeline
 from diffusers import logging as dlogging
-import torch
-from huggingface_hub import hf_hub_url, HfFolder, HfApi
+from huggingface_hub import HfApi, HfFolder, hf_hub_url
 from omegaconf import OmegaConf
 from tqdm import tqdm
 
 import invokeai.configs as configs
-
 from invokeai.app.services.config import InvokeAIAppConfig
-from invokeai.backend.model_management import ModelManager, ModelType, BaseModelType, ModelVariantType, AddModelResult
-from invokeai.backend.model_management.model_probe import ModelProbe, SchedulerPredictionType, ModelProbeInfo
+from invokeai.backend.model_management import AddModelResult, BaseModelType, ModelManager, ModelType, ModelVariantType
+from invokeai.backend.model_management.model_probe import ModelProbe, ModelProbeInfo, SchedulerPredictionType
 from invokeai.backend.util import download_with_resume
-from invokeai.backend.util.devices import torch_dtype, choose_torch_device
+from invokeai.backend.util.devices import choose_torch_device, torch_dtype
+
 from ..util.logging import InvokeAILogger
 
 warnings.filterwarnings("ignore")

invokeai/backend/model_management/models/__init__.py

@@ -1,29 +1,30 @@
 import inspect
 from enum import Enum
-from pydantic import BaseModel
 from typing import Literal, get_origin
+
+from pydantic import BaseModel
+
 from .base import (  # noqa: F401
     BaseModelType,
-    ModelType,
-    SubModelType,
+    DuplicateModelException,
+    InvalidModelException,
     ModelBase,
     ModelConfigBase,
+    ModelError,
+    ModelNotFoundException,
+    ModelType,
     ModelVariantType,
     SchedulerPredictionType,
-    ModelError,
     SilenceWarnings,
-    ModelNotFoundException,
-    InvalidModelException,
-    DuplicateModelException,
+    SubModelType,
 )
-from .stable_diffusion import StableDiffusion1Model, StableDiffusion2Model
-from .sdxl import StableDiffusionXLModel
-from .vae import VaeModel
-from .lora import LoRAModel
 from .controlnet import ControlNetModel  # TODO:
-from .textual_inversion import TextualInversionModel
-
+from .lora import LoRAModel
+from .sdxl import StableDiffusionXLModel
+from .stable_diffusion import StableDiffusion1Model, StableDiffusion2Model
 from .stable_diffusion_onnx import ONNXStableDiffusion1Model, ONNXStableDiffusion2Model
+from .textual_inversion import TextualInversionModel
+from .vae import VaeModel
 
 MODEL_CLASSES = {
     BaseModelType.StableDiffusion1: {

invokeai/backend/model_management/models/base.py

@@ -1,29 +1,25 @@
+import inspect
 import json
 import os
 import sys
 import typing
-import inspect
 import warnings
 from abc import ABCMeta, abstractmethod
 from contextlib import suppress
 from enum import Enum
 from pathlib import Path
-from picklescan.scanner import scan_file_path
+from typing import Any, Callable, Dict, Generic, List, Literal, Optional, Type, TypeVar, Union
 
-import torch
 import numpy as np
 import onnx
 import safetensors.torch
-from diffusers import DiffusionPipeline, ConfigMixin
-from onnx import numpy_helper
-from onnxruntime import (
-    InferenceSession,
-    SessionOptions,
-    get_available_providers,
-)
-from pydantic import BaseModel, Field
-from typing import List, Dict, Optional, Type, Literal, TypeVar, Generic, Callable, Any, Union
+import torch
+from diffusers import ConfigMixin, DiffusionPipeline
 from diffusers import logging as diffusers_logging
+from onnx import numpy_helper
+from onnxruntime import InferenceSession, SessionOptions, get_available_providers
+from picklescan.scanner import scan_file_path
+from pydantic import BaseModel, Field
 from transformers import logging as transformers_logging
 
 

invokeai/backend/model_management/models/controlnet.py

@@ -1,23 +1,26 @@
 import os
-import torch
 from enum import Enum
 from pathlib import Path
-from typing import Optional, Literal
+from typing import Literal, Optional
+
+import torch
+
+import invokeai.backend.util.logging as logger
+from invokeai.app.services.config import InvokeAIAppConfig
+
 from .base import (
+    BaseModelType,
+    EmptyConfigLoader,
+    InvalidModelException,
     ModelBase,
     ModelConfigBase,
-    BaseModelType,
+    ModelNotFoundException,
     ModelType,
     SubModelType,
-    EmptyConfigLoader,
-    calc_model_size_by_fs,
     calc_model_size_by_data,
+    calc_model_size_by_fs,
     classproperty,
-    InvalidModelException,
-    ModelNotFoundException,
 )
-from invokeai.app.services.config import InvokeAIAppConfig
-import invokeai.backend.util.logging as logger
 
 
 class ControlNetModelFormat(str, Enum):

invokeai/backend/model_management/models/sdxl.py

@@ -1,19 +1,21 @@
-import os
 import json
+import os
 from enum import Enum
-from pydantic import Field
 from typing import Literal, Optional
+
+from omegaconf import OmegaConf
+from pydantic import Field
+
 from .base import (
-    ModelConfigBase,
     BaseModelType,
+    DiffusersModel,
+    InvalidModelException,
+    ModelConfigBase,
     ModelType,
     ModelVariantType,
-    DiffusersModel,
-    read_checkpoint_meta,
     classproperty,
-    InvalidModelException,
+    read_checkpoint_meta,
 )
-from omegaconf import OmegaConf
 
 
 class StableDiffusionXLModelFormat(str, Enum):

invokeai/backend/model_management/models/stable_diffusion.py

@@ -1,26 +1,29 @@
-import os
 import json
+import os
 from enum import Enum
-from pydantic import Field
 from pathlib import Path
 from typing import Literal, Optional, Union
+
 from diffusers import StableDiffusionInpaintPipeline, StableDiffusionPipeline
-from .base import (
-    ModelConfigBase,
-    BaseModelType,
-    ModelType,
-    ModelVariantType,
-    DiffusersModel,
-    SilenceWarnings,
-    read_checkpoint_meta,
-    classproperty,
-    InvalidModelException,
-    ModelNotFoundException,
-)
-from .sdxl import StableDiffusionXLModel
+from omegaconf import OmegaConf
+from pydantic import Field
+
 import invokeai.backend.util.logging as logger
 from invokeai.app.services.config import InvokeAIAppConfig
-from omegaconf import OmegaConf
+
+from .base import (
+    BaseModelType,
+    DiffusersModel,
+    InvalidModelException,
+    ModelConfigBase,
+    ModelNotFoundException,
+    ModelType,
+    ModelVariantType,
+    SilenceWarnings,
+    classproperty,
+    read_checkpoint_meta,
+)
+from .sdxl import StableDiffusionXLModel
 
 
 class StableDiffusion1ModelFormat(str, Enum):
@@ -272,8 +275,8 @@ def _convert_ckpt_and_cache(
         return output_path
 
     # to avoid circular import errors
-    from ..convert_ckpt_to_diffusers import convert_ckpt_to_diffusers
     from ...util.devices import choose_torch_device, torch_dtype
+    from ..convert_ckpt_to_diffusers import convert_ckpt_to_diffusers
 
     model_base_to_model_type = {
         BaseModelType.StableDiffusion1: "FrozenCLIPEmbedder",

invokeai/backend/model_management/models/stable_diffusion_onnx.py

@@ -2,15 +2,16 @@ from enum import Enum
 from typing import Literal
 
 from diffusers import OnnxRuntimeModel
+
 from .base import (
-    ModelConfigBase,
     BaseModelType,
+    DiffusersModel,
+    IAIOnnxRuntimeModel,
+    ModelConfigBase,
     ModelType,
     ModelVariantType,
-    DiffusersModel,
     SchedulerPredictionType,
     classproperty,
-    IAIOnnxRuntimeModel,
 )
 
 

invokeai/backend/model_management/models/textual_inversion.py

@@ -1,19 +1,20 @@
 import os
-import torch
 from typing import Optional
-from .base import (
-    ModelBase,
-    ModelConfigBase,
-    BaseModelType,
-    ModelType,
-    SubModelType,
-    classproperty,
-    ModelNotFoundException,
-    InvalidModelException,
-)
+
+import torch
 
 # TODO: naming
 from ..lora import TextualInversionModel as TextualInversionModelRaw
+from .base import (
+    BaseModelType,
+    InvalidModelException,
+    ModelBase,
+    ModelConfigBase,
+    ModelNotFoundException,
+    ModelType,
+    SubModelType,
+    classproperty,
+)
 
 
 class TextualInversionModel(ModelBase):

invokeai/backend/model_management/models/vae.py

@@ -8,19 +8,20 @@ import torch
 from omegaconf import OmegaConf
 
 from invokeai.app.services.config import InvokeAIAppConfig
+
 from .base import (
+    BaseModelType,
+    EmptyConfigLoader,
+    InvalidModelException,
     ModelBase,
     ModelConfigBase,
-    BaseModelType,
-    ModelType,
-    SubModelType,
-    ModelVariantType,
-    EmptyConfigLoader,
-    calc_model_size_by_fs,
-    calc_model_size_by_data,
-    classproperty,
-    InvalidModelException,
     ModelNotFoundException,
+    ModelType,
+    ModelVariantType,
+    SubModelType,
+    calc_model_size_by_data,
+    calc_model_size_by_fs,
+    classproperty,
 )
 
 

invokeai/backend/stable_diffusion/__init__.py

@@ -9,7 +9,7 @@ from .diffusers_pipeline import (  # noqa: F401
 from .diffusion import InvokeAIDiffuserComponent  # noqa: F401
 from .diffusion.cross_attention_map_saving import AttentionMapSaver  # noqa: F401
 from .diffusion.shared_invokeai_diffusion import (  # noqa: F401
-    PostprocessingSettings,
     BasicConditioningInfo,
+    PostprocessingSettings,
     SDXLConditioningInfo,
 )

invokeai/backend/stable_diffusion/diffusers_pipeline.py

@@ -5,20 +5,16 @@ import inspect
 from dataclasses import dataclass, field
 from typing import Any, Callable, List, Optional, Union
 
-import PIL.Image
 import einops
+import PIL.Image
 import psutil
 import torch
 import torchvision.transforms as T
 from diffusers.models import AutoencoderKL, UNet2DConditionModel
 from diffusers.models.controlnet import ControlNetModel
 from diffusers.pipelines.stable_diffusion import StableDiffusionPipelineOutput
-from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion import (
-    StableDiffusionPipeline,
-)
-from diffusers.pipelines.stable_diffusion.safety_checker import (
-    StableDiffusionSafetyChecker,
-)
+from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion import StableDiffusionPipeline
+from diffusers.pipelines.stable_diffusion.safety_checker import StableDiffusionSafetyChecker
 from diffusers.schedulers import KarrasDiffusionSchedulers
 from diffusers.schedulers.scheduling_utils import SchedulerMixin, SchedulerOutput
 from diffusers.utils.import_utils import is_xformers_available

invokeai/backend/stable_diffusion/diffusion/__init__.py

@@ -4,8 +4,8 @@ Initialization file for invokeai.models.diffusion
 from .cross_attention_control import InvokeAICrossAttentionMixin  # noqa: F401
 from .cross_attention_map_saving import AttentionMapSaver  # noqa: F401
 from .shared_invokeai_diffusion import (  # noqa: F401
+    BasicConditioningInfo,
     InvokeAIDiffuserComponent,
     PostprocessingSettings,
-    BasicConditioningInfo,
     SDXLConditioningInfo,
 )

invokeai/backend/stable_diffusion/diffusion/cross_attention_control.py

@@ -11,16 +11,12 @@ import diffusers
 import psutil
 import torch
 from compel.cross_attention_control import Arguments
+from diffusers.models.attention_processor import Attention, AttentionProcessor, AttnProcessor, SlicedAttnProcessor
 from diffusers.models.unet_2d_condition import UNet2DConditionModel
-from diffusers.models.attention_processor import AttentionProcessor
-from diffusers.models.attention_processor import (
-    Attention,
-    AttnProcessor,
-    SlicedAttnProcessor,
-)
 from torch import nn
 
 import invokeai.backend.util.logging as logger
+
 from ...util import torch_dtype
 
 

invokeai/backend/stable_diffusion/diffusion/shared_invokeai_diffusion.py

@@ -1,8 +1,8 @@
 from __future__ import annotations
 
+import math
 from contextlib import contextmanager
 from dataclasses import dataclass
-import math
 from typing import Any, Callable, Optional, Union
 
 import torch

invokeai/backend/stable_diffusion/schedulers/schedulers.py

@@ -1,18 +1,18 @@
 from diffusers import (
     DDIMScheduler,
+    DDPMScheduler,
+    DEISMultistepScheduler,
     DPMSolverMultistepScheduler,
-    KDPM2DiscreteScheduler,
-    KDPM2AncestralDiscreteScheduler,
-    EulerDiscreteScheduler,
+    DPMSolverSDEScheduler,
+    DPMSolverSinglestepScheduler,
     EulerAncestralDiscreteScheduler,
+    EulerDiscreteScheduler,
     HeunDiscreteScheduler,
+    KDPM2AncestralDiscreteScheduler,
+    KDPM2DiscreteScheduler,
     LMSDiscreteScheduler,
     PNDMScheduler,
     UniPCMultistepScheduler,
-    DPMSolverSinglestepScheduler,
-    DEISMultistepScheduler,
-    DDPMScheduler,
-    DPMSolverSDEScheduler,
 )
 
 SCHEDULER_MAP = dict(

invokeai/backend/training/textual_inversion_training.py

@@ -24,13 +24,8 @@ import torch.utils.checkpoint
 import transformers
 from accelerate import Accelerator
 from accelerate.logging import get_logger
-from accelerate.utils import set_seed, ProjectConfiguration
-from diffusers import (
-    AutoencoderKL,
-    DDPMScheduler,
-    StableDiffusionPipeline,
-    UNet2DConditionModel,
-)
+from accelerate.utils import ProjectConfiguration, set_seed
+from diffusers import AutoencoderKL, DDPMScheduler, StableDiffusionPipeline, UNet2DConditionModel
 from diffusers.optimization import get_scheduler
 from diffusers.utils import check_min_version
 from diffusers.utils.import_utils import is_xformers_available

invokeai/backend/util/devices.py

@@ -1,12 +1,13 @@
 from __future__ import annotations
 
-from contextlib import nullcontext
-from packaging import version
 import platform
+from contextlib import nullcontext
+from typing import Union
 
 import torch
+from packaging import version
 from torch import autocast
-from typing import Union
+
 from invokeai.app.services.config import InvokeAIAppConfig
 
 CPU_DEVICE = torch.device("cpu")

invokeai/backend/util/logging.py

@@ -178,7 +178,6 @@ InvokeAI:
 import logging.handlers
 import socket
 import urllib.parse
-
 from abc import abstractmethod
 from pathlib import Path
 

invokeai/backend/util/util.py

@@ -1,11 +1,10 @@
+import base64
 import importlib
+import io
 import math
 import multiprocessing as mp
 import os
 import re
-import io
-import base64
-
 from collections import abc
 from inspect import isfunction
 from pathlib import Path
@@ -19,6 +18,7 @@ from PIL import Image, ImageDraw, ImageFont
 from tqdm import tqdm
 
 import invokeai.backend.util.logging as logger
+
 from .devices import torch_dtype
 
 

scripts/configure_invokeai.py

@@ -2,6 +2,7 @@
 # Copyright (c) 2022 Lincoln D. Stein (https://github.com/lstein)
 
 import warnings
+
 from invokeai.frontend.install.invokeai_configure import invokeai_configure as configure
 
 if __name__ == "__main__":

scripts/images2prompt.py

@@ -2,6 +2,7 @@
 """This script reads the "Invoke" Stable Diffusion prompt embedded in files generated by invoke.py"""
 
 import sys
+
 from PIL import Image
 
 if len(sys.argv) < 2:

scripts/invokeai-cli.py

@@ -2,8 +2,8 @@
 
 # Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
 
-import os
 import logging
+import os
 
 logging.getLogger("xformers").addFilter(lambda record: "A matching Triton is not available" not in record.getMessage())
 

scripts/invokeai-web.py

@@ -2,8 +2,8 @@
 
 # Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
 
-import os
 import logging
+import os
 
 logging.getLogger("xformers").addFilter(lambda record: "A matching Triton is not available" not in record.getMessage())
 

scripts/make_models_markdown_table.py

@@ -5,9 +5,10 @@ This script is used at release time to generate a markdown table describing the
 starter models. This text is then manually copied into 050_INSTALL_MODELS.md.
 """
 
-from omegaconf import OmegaConf
 from pathlib import Path
 
+from omegaconf import OmegaConf
+
 
 def main():
     initial_models_file = Path(__file__).parent / "../invokeai/configs/INITIAL_MODELS.yaml"

scripts/probe-model.py

@@ -2,6 +2,7 @@
 
 import argparse
 from pathlib import Path
+
 from invokeai.backend.model_management.model_probe import ModelProbe
 
 parser = argparse.ArgumentParser(description="Probe model type")

scripts/scan_models_directory.py

@@ -4,11 +4,11 @@
 Scan the models directory and print out a new models.yaml
 """
 
+import argparse
 import os
 import sys
-import argparse
-
 from pathlib import Path
+
 from omegaconf import OmegaConf
 
 

scripts/sd-metadata.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python
 
-import sys
 import json
+import sys
+
 from invokeai.backend.image_util import retrieve_metadata
 
 if len(sys.argv) < 2: