Struct AddAttributeTooltipsEvent 

pub struct AddAttributeTooltipsEvent<'a> {
    pub player: Option<u128>,
    pub player_entity_id: Option<i32>,
    pub stack: &'a ItemStack,
    pub shown: bool,
    pub advanced: bool,
    pub creative: bool,
    pub lines: &'a mut Vec<(Text, u32)>,
}

What Hooks::add_attribute_tooltips is told. Each field is that hook’s argument of the same name, described in the hook’s doc.

Fields

player: Option<u128>

player_entity_id: Option<i32>

stack: &'a ItemStack

shown: bool

advanced: bool

creative: bool

lines: &'a mut Vec<(Text, u32)>