export default ( variables ) => { let output = '' ; Object . keys ( variables ) . forEach ( ( key , index ) => { const variable = variables [ key ] ; const types = variable . types . map ( ( type ) => { if ( typeof type === 'function' ) { return type ( ) ; } else { return type ; } } ) . filter ( ( type ) => type ) ; if ( types . length === 0 ) { types . push ( 'unknown' ) ; } if ( variable . label ) { output += [ ... new Set ( types ) ] . join ( '|' ) + ' public ' + variable . label + ';' ; } else { output += [ ... new Set ( types ) ] . join ( '|' ) + ' var' + ( index + 1 ) . toString ( ) + ';' ; index ++ ; } output += '\n' ; } ) ; if ( Object . keys ( variables ) . length > 0 ) { output += '\n' ; } return output ; } ;