From 8b488f04b56cddb988f4e1aa116e794ae1a72665 Mon Sep 17 00:00:00 2001
From: Jorge Olivero <jorgeaolivero@gmail.com>
Date: Fri, 12 Apr 2019 02:39:33 -0500
Subject: [PATCH] src/types/trace_filtering.rs: update `Trace` struct (#213)

---
 src/types/trace_filtering.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/types/trace_filtering.rs b/src/types/trace_filtering.rs
index 48423f7a..c619e505 100644
--- a/src/types/trace_filtering.rs
+++ b/src/types/trace_filtering.rs
@@ -82,7 +82,7 @@ pub struct Trace {
     /// Action
     pub action: Action,
     /// Result
-    pub result: Res,
+    pub result: Option<Res>,
     /// Trace address
     #[serde(rename = "traceAddress")]
     pub trace_address: Vec<usize>,
@@ -102,6 +102,8 @@ pub struct Trace {
     pub block_hash: H256,
     #[serde(rename = "type")]
     action_type: ActionType,
+    // Error
+    pub error: Option<String>,
 }
 
 /// Response