type A1 = { readonly [A in B]: T}
type A2 = {
readonly [A in B]: T}
type A3 = { readonly
 [A in B]: T}
type A4 = { readonly [
A in B]: T}
type A5 = { readonly [A in B]
: T}
type A6 = { readonly [A in B]:
T}
type A7 = { readonly [A in B]: T
}
