Struct BlockEntityRenderBoundingBoxEvent 

pub struct BlockEntityRenderBoundingBoxEvent<'a> {
    pub pos: [i32; 3],
    pub block: &'a str,
    pub state: BlockState,
    pub entity: &'a ModBlockEntity,
    pub bounds: &'a mut [f32; 6],
}

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

Fields

pos: [i32; 3]

block: &'a str

state: BlockState

entity: &'a ModBlockEntity

bounds: &'a mut [f32; 6]