How does squealer claim that boxer spent his last hours?

Squealer claims that Boxer spent his last hours in a heroic and devoted manner, emphasizing his unwavering commitment to the farm and the cause of Animalism. He portrays Boxer as a martyr, suggesting that he was taken away to receive medical care, when in reality, Boxer was sold to a glue factory. This manipulation of the truth serves to maintain the illusion of the pigs' benevolent leadership and to suppress any dissent among the other animals regarding Boxer's fate.