src/vs/platform/terminal/node/terminalProcess.ts/TerminalProcess/updateProperty
class TerminalProcess:	async updateProperty<T extends ProcessPropertyType>(type: T, value: IProcessPropertyMap[T]): Promise<void> {
		if (type === ProcessPropertyType.FixedDimensions) {
			this._properties.fixedDimensions = value as IProcessPropertyMap[ProcessPropertyType.FixedDimensions];
		}
	}