let log2: 'a => 'b => unit;
let log3: 'a => 'b => 'c => unit;
let log4: 'a => 'b => 'c => 'd => unit;
let logMany: array('a) => unit;
let info2: 'a => 'b => unit;
let info3: 'a => 'b => 'c => unit;
let info4: 'a => 'b => 'c => 'd => unit;
let infoMany: array('a) => unit;
let warn2: 'a => 'b => unit;
let warn3: 'a => 'b => 'c => unit;
let warn4: 'a => 'b => 'c => 'd => unit;
let warnMany: array('a) => unit;
let error2: 'a => 'b => unit;
let error3: 'a => 'b => 'c => unit;
let error4: 'a => 'b => 'c => 'd => unit;
let errorMany: array('a) => unit;
let timeStart: string => unit;
let timeEnd: string => unit;