src/vs/editor/common/model/tokenizationTextModelPart.ts/TokenizationTextModelPart/setLineTokens
class TokenizationTextModelPart:	public setLineTokens(
		lineNumber: number,
		tokens: Uint32Array | ArrayBuffer | null
	): void {
		if (lineNumber < 1 || lineNumber > this._textModel.getLineCount()) {
			throw new Error('Illegal value for lineNumber');
		}

		this._tokens.setTokens(
			this._languageId,
			lineNumber - 1,
			this._textModel.getLineLength(lineNumber),
			tokens,
			false
		);
	}