Added usage examples

Signed-off-by: Adrian Boguszewski <adrian.boguszewski@intel.com>

src/anomalib/engine/engine.py

@@ -922,12 +922,12 @@ def export(
             3. To export as an OpenVINO ``.xml`` and ``.bin`` file you can run the following command.
                 ```python
                 anomalib export --model Padim --export_mode openvino --ckpt_path <PATH_TO_CHECKPOINT> \
-                --input_size "[256,256]"
+                --input_size "[256,256] --compression_type "fp16"
                 ```
-            4. You can also override OpenVINO model optimizer by adding the ``--ov_args.<key>`` arguments.
+            4. You can also quantize OpenVINO model with the following.
                 ```python
                 anomalib export --model Padim --export_mode openvino --ckpt_path <PATH_TO_CHECKPOINT> \
-                --input_size "[256,256]" --ov_args.compress_to_fp16 False
+                --input_size "[256,256]" --compression_type "int8_ptq" --data MVTec
                 ```
         """
         export_type = ExportType(export_type)

src/anomalib/models/components/base/export_mixin.py

@@ -218,6 +218,22 @@ def to_openvino(
             ...     task=datamodule.test_data.task
             ... )
 
+            Export and Quantize the Model (OpenVINO IR):
+            This example demonstrates how to export and quantize the model to OpenVINO IR.
+
+            >>> from anomalib.models import Patchcore
+            >>> from anomalib.data import Visa
+            ...
+            >>> datamodule = Visa()
+            >>> model = Patchcore()
+            ...
+            >>> model.to_openvino(
+            ...     export_root="path/to/export",
+            ...     compression_type=CompressionType.INT8_PTQ,
+            ...     datamodule=datamodule,
+            ...     task=datamodule.test_data.task
+            ... )
+
             Using Custom Transforms:
             This example shows how to use a custom ``Transform`` object for the ``transform`` argument.