usestd::ops::BitXorAssign;#[derive(Debug, PartialEq)]structPersonality {    has_soul: bool,    likes_knitting: bool,}implBitXorAssignforPersonality {fnbitxor_assign(&mutself, rhs:Self) {self.has_soul ^= rhs.has_soul;self.likes_knitting ^= rhs.likes_knitting;    }}letmutpersonality = Personality { has_soul:false, likes_knitting:true};personality ^= Personality { has_soul:true, likes_knitting:true};assert_eq!(personality, Personality { has_soul:true, likes_knitting:false});