diff --git a/sdk-go/inferable.go b/sdk-go/inferable.go
index e6ca9e97..5b017190 100644
--- a/sdk-go/inferable.go
+++ b/sdk-go/inferable.go
@@ -65,7 +65,8 @@ type InferableOptions struct {
 	MachineID   string
 }
 
-// Struct type that will be returned to a Run's OnStatusChange Function
+// Input object for onStatusChange functions
+// https://docs.inferable.ai/pages/runs#onstatuschange
 type OnStatusChangeInput struct {
 	Status   string      `json:"status"`
 	RunId    string      `json:"runId"`
@@ -73,6 +74,12 @@ type OnStatusChangeInput struct {
 	Metadata interface{} `json:"metadata"`
 }
 
+// Input object for handleCustomerAuth functions
+// https://docs.inferable.ai/pages/auth#handlecustomerauth
+type HandleCustomerAuthInput struct {
+	Token string `json:"token"`
+}
+
 type runResult = OnStatusChangeInput
 
 type RunTemplate struct {