1 files changed, 9 insertions, 1 deletions
diff --git a/src/utils/exception.ts b/src/utils/exception.ts
index 625c32a..0472003 100644
--- a/src/utils/exception.ts
+++ b/src/utils/exception.ts
@@ -1 +1,9 @@
-export class NotImplementedException extends Error {}
+export class NotImplementedError extends Error {}
+
+export class UnknownSymbolError extends Error {}
+
+export class InvalidStateError extends Error {}
+
+export class BadArgumentError extends Error {}
+
+export class InvalidType extends Error {}