A set of strings whose members represents headers that should be signed. Any values passed here will override those provided via unsignableHeaders, allowing them to be signed. All headers in the provided request will have their names converted to lower case before signing.
The date and time to be used as signature metadata. This value should be
a Date object, a unix (epoch) timestamp, or a string that can be
understood by the JavaScript Date constructor.If not supplied, the
value returned by new Date() will be used.
The region name to sign the request. It will override the signing region of the signer in current invocation
The service signing name. It will override the service name of the signer in current invocation
A set of strings whose members represents headers that cannot be signed. All headers in the provided request will have their names converted to lower case and then checked for existence in the unsignableHeaders set.