diff --git a/src/lib.rs b/src/lib.rs
index baa5882..619dc6f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,7 +3,7 @@ use ratmom::{prelude::*, Request};
 use serde::{Serialize, Deserialize};
 
 #[derive(Serialize, Deserialize, Debug)]
-struct Delta {
+pub struct Delta {
     pub role: String,
     pub id: String,
     pub parent_message_id: String,
@@ -13,7 +13,7 @@ struct Delta {
 }
 
 #[derive(Serialize, Deserialize, Debug)]
-struct Detail {
+pub struct Detail {
     pub id: String,
     pub object: String,
     pub created: i64,
@@ -22,14 +22,14 @@ struct Detail {
 }
 
 #[derive(Serialize, Deserialize, Debug)]
-struct Choice {
+pub struct Choice {
     pub delta: DeltaChoice,
     pub index: i64,
     pub finish_reason: String,
 }
 
 #[derive(Serialize, Deserialize, Debug)]
-struct DeltaChoice {
+pub struct DeltaChoice {
     pub content: String,
 }