{
  'jBinary.all': 'File',
  'jBinary.littleEndian': true,
  // declaring custom type by wrapping structure
  DynamicArray: jBinary.Template({
    setParams: function (itemType) {
      this.baseType = {
        // using built-in type
        length: 'uint16',
        // using complex built-in type with simple argument and argument from another field
        values: ['array', itemType, 'length']
      };
    },
    read: function () {
      return this.baseRead().values;
    },
    write: function (values) {
      this.baseWrite({
        length: values.length,
        values: values
      });
    }
  }),
  // declaring simple structure
  FileItem: {
    // using built-in type with argument
    name: ['string0', 256],
    // using another custom type with no arguments
    content: 'DynamicArray'
  },
  // aliasing FileItem[] as type of entire File
  File: ['array', 'FileItem']
}