Macro wrap_accessibility_handler 

macro_rules! wrap_accessibility_handler {
    ($ vis : vis struct $ name : ident ; impl AccessibilityHandler { $ ($ (# [$ attrs_name : meta]) * fn $ method_name : ident (& $ self : ident $ (, $ arg_name : ident : $ arg_type : ty) * $ (,) ?) $ (-> $ return_type : ty) ? { $ ($ body : tt) * }) * }) => { ... };
    ($ vis : vis struct $ name : ident $ (< $ ($ generic_type : ident : $ first_generic_type_bound : tt $ (+ $ generic_type_bound : tt) *) , + $ (,) ? >) ? { $ ($ field_vis : vis $ field_name : ident : $ field_type : ty) , * $ (,) ? } impl AccessibilityHandler { $ ($ (# [$ attrs_name : meta]) * fn $ method_name : ident (& $ self : ident $ (, $ arg_name : ident : $ arg_type : ty) * $ (,) ?) $ (-> $ return_type : ty) ? { $ ($ body : tt) * }) * }) => { ... };
}

Implement the WrapAccessibilityHandler trait for the specified struct. You can declare more members for your struct, and in the impl AccessibilityHandler block you can override default methods implemented by the ImplAccessibilityHandler trait.

Example

wrap_accessibility_handler! {
    struct MyAccessibilityHandler {
        payload: String,
    }

    impl AccessibilityHandler {
        // ...
    }
}

fn make_my_struct() -> AccessibilityHandler {
    MyAccessibilityHandler::new("payload".to_string())
}