diff --git a/model.go b/model.go
new file mode 100644
index 0000000..7ae43fb
--- /dev/null
+++ b/model.go
@@ -0,0 +1,20 @@
+package natsio
+
+import "go.mongodb.org/mongo-driver/bson/primitive"
+
+type FilePhoto struct {
+	ID         primitive.ObjectID `json:"_id"`
+	Name       string             `json:"name"`
+	Dimensions *FileDimensions    `json:"dimensions"`
+}
+
+type FileSize struct {
+	Width  int    `json:"width"`
+	Height int    `json:"height"`
+	URL    string `json:"url,omitempty"`
+}
+
+type FileDimensions struct {
+	Small  *FileSize `json:"sm"`
+	Medium *FileSize `json:"md"`
+}