whole_func_string: function(payload, header, secret, tolerance) {
      this.signature.verifyHeader(payload, header, secret, tolerance || Webhook.DEFAULT_TOLERANCE);
  
      var jsonPayload = JSON.parse(payload);
      return jsonPayload;
    }
func_code_string: function(payload, header, secret, tolerance) {
      this.signature.verifyHeader(payload, header, secret, tolerance || Webhook.DEFAULT_TOLERANCE);
  
      var jsonPayload = JSON.parse(payload);
      return jsonPayload;
    }
func_documentation_string: 5 minutes