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-rw-r--r--src/lib/util-types.ts4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/lib/util-types.ts b/src/lib/util-types.ts
new file mode 100644
index 0000000..861edcf
--- /dev/null
+++ b/src/lib/util-types.ts
@@ -0,0 +1,4 @@
+export type Unpromise<T extends Promise<any>> = T extends Promise<infer U>
+ ? U
+ : never;
+export type Defined<T> = T extends undefined | null ? never : T;