stripe-js: Broken typings for StripeAuBankAccountElement when using StripeElement

Summary

The (I assume new-ish) type StripeAuBankAccountElement seems to break compatibility for resolving other elements such as StripeCardElement against the parent StripeElement.

https://github.com/stripe/stripe-js/blob/master/types/stripe-js/elements.d.ts#L14 (strangely imported here) https://github.com/stripe/stripe-js/blob/master/types/stripe-js/elements.d.ts#L251-L263

TS2322: 
Type 'StripeElement' is not assignable to type 'StripeCardElement | StripeCardNumberElement | { token: string; }'.   

Type 'StripeAuBankAccountElement' is not assignable to type 'StripeCardElement | StripeCardNumberElement | { token: string; }'.

Type 'StripeAuBankAccountElement' is not assignable to type 'StripeCardNumberElement'.

Type 'StripeAuBankAccountElement' is not assignable to type '{ on(eventType: "change", handler: (event: StripeCardNumberElementChangeEvent) => any): StripeCardNumberElement; on(eventType: "ready", handler: (event: { ...; }) => any): StripeCardNumberElement; on(eventType: "focus", handler: (event: { ...; }) => any): StripeCardNumberElement; on(eventType: "blur", handler: (even...'.         
  Types of property 'on' are incompatible.           

Type '{ (eventType: "change", handler: (event: StripeAuBankAccountElementChangeEvent) => any): StripeAuBankAccountElement; (eventType: "ready", handler: (event: { ...; }) => any): StripeAuBankAccountElement; (eventType: "focus", handler: (event: { ...; }) => any): StripeAuBankAccountElement; (eventType: "blur", handler: (...' is not assignable to type '{ (eventType: "change", handler: (event: StripeCardNumberElementChangeEvent) => any): StripeCardNumberElement; (eventType: "ready", handler: (event: { ...; }) => any): StripeCardNumberElement; (eventType: "focus", handler: (event: { ...; }) => any): StripeCardNumberElement; (eventType: "blur", handler: (event: { ......'.             
  Types of parameters 'handler' and 'handler' are incompatible.               
  Types of parameters 'event' and 'event' are incompatible.                 
  Property 'brand' is missing in type 'StripeAuBankAccountElementChangeEvent' but required in type 'StripeCardNumberElementChangeEvent'.