Did Boris Johnson mislead Parliament over parties?

Key Facts

Date of quote: 8 December 2021 Context: Labour MP Catherine West asked: "Will the prime minister tell the House whether there was a party in Downing Street on 13 November [2020]?" What Mr Johnson said: "No - but I am sure that whatever happened, the guidance was followed and the rules were followed at all times."
Instead, her report mentions: a gathering, with food and alcohol, in the Press Office area to mark the departure of Director of Communications Lee Cain, where Mr Johnson gave a leaving speech a gathering, with food and alcohol, in Mr Johnson's No 10 flat attended by five special advisers and the prime minister The photos of the former even show the prime minister raising a glass in front of several people and a table with a number of wine bottles, as well as takeaway food.
What Johnson said: "I am happy to set on the record now that when I said - I came to this house and said in all sincerity that the rules and guidance had been followed at all times - it was what I believed to be true.
We know from the Sue Gray report that the prime minister attended leaving drinks on: 13 November 2020 - he stayed for around 30 minutes and made a speech for Lee Cain 27 November 2020 - he stayed for a "short time" and made a speech for a departing adviser * 14 January 2021 - he stayed for a "short time" and made a speech for two No 10 officials Mr Johnson says both rules and guidance were "certainly" followed when he was present at these gatherings.