(function($, _){
var workflows = {};
wp.media.coerce = function ( attrs, key ) {
if ( _.isUndefined( attrs[ key ] ) && ! _.isUndefined( this.defaults[ key ] ) ) {
attrs[ key ] = this.defaults[ key ];
} else if ( 'true' === attrs[ key ] ) {
attrs[ key ] = true;
} else if ( 'false' === attrs[ key ] ) {
attrs[ key ] = false;
}
return attrs[ key ];
};
wp.media.string = {