The AuthenticatorAssertionResponse interface of the Web Authentication
is returned by `CredentialsContainer.get()` when a `web.auth.PublicKeyCredential`
passed, and provides proof to a service that it has a key pair
that the authentication request is valid and approved.

The AuthenticatorAttestationResponse interface of the Web Authentication
is returned by `CredentialsContainer.create()` when a `web.auth.PublicKeyCredential`
passed, and provides a cryptographic root of trust for the new
pair that has been generated. This response should be sent to
relying party's server to complete the creation of the credential.

The AuthenticatorResponse interface of the Web Authentication
is the base interface for interfaces that provide a cryptographic
of trust for a key pair. The child interfaces include information
the browser such as the challenge origin and either may be returned
`PublicKeyCredential.response`.

web.auth interfaces.

The PublicKeyCredential interface provides information about
public key / private key pair, which is a credential for logging
to a service using an un-phishable and data-breach resistant
key pair instead of a password. It inherits from `web.credential.Credential`,
was created by the Web Authentication API extension to the Credential
API. Other interfaces that inherit from `web.credential.Credential`
`web.credential.PasswordCredential` and `web.credential.FederatedCredential`.

The PublicKeyCredentialCreationOptions dictionary of the Web
API holds options passed to `navigators.credentials.create()`
order to create a `web.auth.PublicKeyCredential`.

The PublicKeyCredentialRequestOptions dictionary of the Web Authentication
holds the options passed to `navigator.credentials.get()` in
to fetch a given `web.auth.PublicKeyCredential`.