[Fix doc examples] Add missing from_pretrained (#15044)

* fix doc example - ValueError: Parameter config should be an instance of class `PretrainedConfig`

* Update src/transformers/models/segformer/modeling_segformer.py

Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>

* update

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>
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Yih-Dar 2022-01-07 16:55:59 +01:00 committed by GitHub
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@ -490,8 +490,8 @@ class SegformerModel(SegformerPreTrainedModel):
>>> from PIL import Image
>>> import requests
>>> feature_extractor = SegformerFeatureExtractor.from_pretrained("nvidia/segformer-b0-finetuned-ade-512-512")
>>> model = SegformerModel("nvidia/segformer-b0-finetuned-ade-512-512")
>>> feature_extractor = SegformerFeatureExtractor.from_pretrained("nvidia/mit-b0")
>>> model = SegformerModel.from_pretrained("nvidia/mit-b0")
>>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
>>> image = Image.open(requests.get(url, stream=True).raw)