Patch(functions): optional params in types

Closes #91

packages/functions/types/traced.d.ts

@@ -4,31 +4,31 @@
  * @param loggable Object with extra information to be logged
  * @returns Returns the result of the function
  */
-export function trace(fn: Function, loggable: Record<any, any>): Promise<void>;
+export function trace(fn: Function, loggable?: Record<any, any>): Promise<void>;
 
 /**
  * @description Creates a new function which when invoked will invoke the given function with tracing
  * @param fn The function to be invoked asynchronously
  * @param loggable Object with extra information to be logged
  * @returns Returns the new function
  */
-export function traced(fn: Function, loggable: Record<any, any>): Function;
+export function traced(fn: Function, loggable?: Record<any, any>): Function;
 
 /**
  * @description Invokes the given function with tracing. Tracing is however ignored if the function is an anonymous function
  * @param fn The function to be invoked asynchronously
  * @param loggable Object with extra information to be logged
  * @returns Returns the result of the function
  */
-export function cleanTrace(fn: Function, loggable: Record<any, any>): Promise<void>;
+export function cleanTrace(fn: Function, loggable?: Record<any, any>): Promise<void>;
 
 /**
  * @description Creates a new function which when invoked will invoke the given function with tracing. Tracing is however ignored if the function is an anonymous function
  * @param fn The function to be invoked asynchronously
  * @param loggable Object with extra information to be logged
  * @returns Returns the new function
  */
-export function cleanTraced(fn: Function, loggable: Record<any, any>): Function;
+export function cleanTraced(fn: Function, loggable?: Record<any, any>): Function;
 
 export default {
   traced,