The Wealth of Nations carries the important message of laissez faire, which means

The Wealth of Nations carries the important message of laissez faire, which means that the government should intervene as little as possible in economic affairs and leave the market to its own devices. It advocates the liberation of economic production from all limiting regulation in order to benefit the people . . . Source: Introduction to a re-publication of Adam Smith’s The Wealth of Nations likely written by Martin Perry in 2013

According to Martin Perry, what role did Adam Smith believe the government should play in the economy?