add get user profile photos action

src/requests/get_user_profile_photos.rs

@@ -1,7 +1,7 @@
-use crate::requests::RequestContext;
+use crate::network;
+use crate::requests::{Request, RequestContext, RequestFuture, ResponseResult};
+use crate::types::UserProfilePhotos;
 
-//TODO: complete implementation after user_profile_fotos will be added to
-// types/mod.rs
 ///Use this method to get a list of profile pictures for a user. Returns a
 /// UserProfilePhotos object.
 #[derive(Debug, Clone, Serialize)]
@@ -17,3 +17,46 @@ pub struct GetUserProfilePhotos<'a> {
     /// accepted. Defaults to 100.
     limit: Option<i64>,
 }
+
+impl<'a> Request<'a> for GetUserProfilePhotos<'a> {
+    type ReturnValue = UserProfilePhotos;
+
+    fn send(self) -> RequestFuture<'a, ResponseResult<Self::ReturnValue>> {
+        Box::pin(async move {
+            network::request_json(
+                &self.ctx.client,
+                &self.ctx.token,
+                "getUserProfilePhotos",
+                &self,
+            )
+            .await
+        })
+    }
+}
+
+impl<'a> GetUserProfilePhotos<'a> {
+    pub fn new(ctx: RequestContext<'a>, user_id: i32) -> Self {
+        Self {
+            ctx,
+            user_id,
+            offset: None,
+            limit: None,
+        }
+    }
+
+    pub fn user_id<T>(mut self, user_id: T) -> Self
+    where
+        T: Into<i32>,
+    {
+        self.user_id = user_id.into();
+        self
+    }
+
+    pub fn offset<T>(mut self, offset: T) -> Self
+    where
+        T: Into<i64>,
+    {
+        self.offset = Some(offset.into());
+        self
+    }
+}