diff --git a/src/types/Context.ts b/src/types/Context.ts
new file mode 100644
index 0000000..00e6ebc
--- /dev/null
+++ b/src/types/Context.ts
@@ -0,0 +1,3 @@
+export default interface Context {
+    [key: string]: string;
+}
diff --git a/src/types/Warrant.ts b/src/types/Warrant.ts
index 0cce8d3..38494d0 100644
--- a/src/types/Warrant.ts
+++ b/src/types/Warrant.ts
@@ -1,5 +1,8 @@
+import Context from "./Context";
+
 export default interface Warrant {
     objectType: string;
     objectId: string;
     relation: string;
+    context?: Context;
 }
diff --git a/src/types/index.ts b/src/types/index.ts
index f82d182..e6f7dbb 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -1,2 +1,3 @@
+export { default as Context } from "./Context";
 export { default as Warrant } from "./Warrant";
 export { default as WarrantCheck, WarrantCheckOp } from "./WarrantCheck";