Function coerce2

src/traces/scattermapbox/defaults.js:18–20

(attr, dflt)

    }

    function coerce2(attr, dflt) {
        return Lib.coerce2(traceIn, traceOut, attributes, attr, dflt);
    }

    var len = handleLonLatDefaults(traceIn, traceOut, coerce);
    if (!len) {