void (SyntaxTreeBuilder.Marker endMarker) { if (myBuilder.getTokenType() == PyTokenTypes.ASYNC_KEYWORD) { myBuilder.advanceLexer(); parseDeclarationAfterDecorator(endMarker, true); } else if (atToken(PyTokenTypes.IDENTIFIER, TOK_ASYNC)) { advanceAsync(true); parseDeclarationAfterDecorator(endMarker, true); } else { parseDeclarationAfterDecorator(endMarker, false); } }