code: function Headers(options) {
    if (!(this instanceof Headers))
      return new Headers(options);
  
    AbstractBlock.call(this);
  
    if (options)
      this.parseOptions(options);
  }
docs: Represents block headers obtained from the network via `headers`.
  @alias module:primitives.Headers
  @constructor
  @extends AbstractBlock
  @param {NakedBlock} options