docs: function MIME() {
  
    var self = this;
  
    this.types = Object.create( null );
    this.extensions = Object.create( null );
  
    for ( var type in typesData ) {
      var exts = typesData[ type ];
      self.extensions[ type ] = exts;
      exts.forEach( function( ext ) {
          self.types[ ext ] = type;
      });
    }
  
    this.default = this.types[ 'bin' ];
  
  }