isEvenNumber = (num) => {
        return (num % 2 === 0);
      }
This functiom deserialises parameter value based on param schema

@param {*} param - OpenAPI Parameter object
@param {String} paramValue - Parameter value to be deserialised
@param {String} parameterSource - Specifies whether the schema being faked is from a request or response.
@param {Object} components - OpenAPI components defined in the OAS spec. These are used to
 resolve references while generating params.
@param {Object} schemaCache - object storing schemaFaker and schmeResolution caches
@returns {*} - deserialises parameter value