Annotation -- Opinion annotation should be implemented at OpinionOperations.iter_opinions_for_extraction

[nicolay-r]

Proceeds issue #250

Steps to refactor: #249

AREkit/arekit/contrib/networks/core/input/helper.py

Lines 115 to 123 in f513500

	def __perform_annotation(exp_ctx, exp_io, doc_ops, opin_ops, data_type):
	collections_it = exp_ctx.Annotator.iter_annotated_collections(
	data_type=data_type, doc_ops=doc_ops, opin_ops=opin_ops)
	for doc_id, collection in collections_it:
	target = exp_io.create_opinion_collection_target(doc_id=doc_id, data_type=data_type)
	exp_io.write_opinion_collection(collection=collection,
	target=target,
	labels_formatter=opin_ops.LabelsFormatter)

[nicolay-r]

Fixed in 745d663