code: function getFQN(tdef) {
  	const hasPreRelease = tdef.deployUnits.array.some((du) => {
  		return semver.prerelease(du.version) !== null;
  	});
  
  	const duTag = hasPreRelease ? '/LATEST' : '';
  
  	let fqn = tdef.name + '/' + tdef.version + duTag;
  
  	function walk(pkg) {
  		if (pkg.eContainer()) {
  			fqn = pkg.name + '.' + fqn;
  			walk(pkg.eContainer());
  		}
  	}
  
  	walk(tdef.eContainer());
  
  	return fqn;
  }
docs: Returns the FQN of the given TypeDefinition
  @param tdef
  @returns {String}