function importSpecifier(name, def) {
    return {
        type: def === true ? 'ImportDefaultSpecifier' : 'ImportSpecifier',
        id: {
            type: 'Identifier',
            name: name
        },
        name: null
    };
}
function importSpecifier(name, def) {
    return {
        type: def === true ? 'ImportDefaultSpecifier' : 'ImportSpecifier',
        id: {
            type: 'Identifier',
            name: name
        },
        name: null
    };
}
function importSpecifier ( name , def ) { return { type : def === true ? 'ImportDefaultSpecifier' : 'ImportSpecifier' , id : { type : 'Identifier' , name : name } , name : null } ; }
Couldn't figure out b.importSpecifier
Couldn t figure out b . importSpecifier