key method
Implementation
KeyContext key() {
dynamic _localctx = KeyContext(context, state);
enterRule(_localctx, 4, RULE_key);
try {
enterOuterAlt(_localctx, 1);
state = 37;
match(TOKEN_KEY);
} on RecognitionException catch (re) {
_localctx.exception = re;
errorHandler.reportError(this, re);
errorHandler.recover(this, re);
} finally {
exitRule();
}
return _localctx;
}