code: function( name, callback ) {
  		var f = { name: name, callback: callback };
  
  		// Type checking
  		if ( ! munit.isString( name ) || ! name.length ) {
  			throw new Error( "Name not found for formatter" );
  		}
  		else if ( ! munit.isFunction( callback ) ) {
  			throw new Error( "Callback not found for formatter" );
  		}
  		else if ( render._formatHash[ name ] ) {
  			throw new Error( "Format '" + name + "' already exists" );
  		}
  
  		// Store info
  		render._formats.push( f );
  		render._formatHash[ name ] = f;
  	}
docs: Result formatters