question: returns a non-null signer for the specified service and region according to the internal configuration which provides a basic default algorithm used for signer determination . concode_field_sep String NO_OP_SIGNER concode_elem_sep String QUERY_STRING_SIGNER concode_elem_sep String VERSION_FOUR_SIGNER concode_elem_sep Map<String,Class<? extends Signer>> SIGNERS concode_elem_sep String VERSION_THREE_SIGNER concode_field_sep Signer getSignerByTypeAndService concode_elem_sep Signer lookupAndCreateSigner concode_elem_sep Signer createSigner concode_elem_sep void registerSigner
target: Signer function ( String arg0 , String arg1 ) { return lookupAndCreateSigner ( arg0 , arg1 ) ; }