--- /dev/null
+module.exports = GlobalHeaderWriter
+
+var ExtendedHeaderWriter = require("./extended-header-writer.js")
+ , inherits = require("inherits")
+
+inherits(GlobalHeaderWriter, ExtendedHeaderWriter)
+
+function GlobalHeaderWriter (props) {
+ if (!(this instanceof GlobalHeaderWriter)) {
+ return new GlobalHeaderWriter(props)
+ }
+ ExtendedHeaderWriter.call(this, props)
+ this.props.type = "g"
+}