feat: export RuntimeTypeError and test that it's thrown

Author: jedwards1211

src/index.spec.ts

@@ -1,5 +1,6 @@
 import { describe, it } from 'mocha'
 import * as t from './'
+import { expect } from 'chai'
 
 type ServiceScalingParameters = {
   DesiredCount?: number | null | undefined
@@ -385,5 +386,10 @@ describe(`smoke test`, function() {
     }
 
     DeployConfigType.assert(config)
+    const { Redis, ...rest } = config
+
+    expect(() => DeployConfigType.assert(rest as any)).to.throw(
+      t.RuntimeTypeError
+    )
   })
 })

src/index.ts

@@ -20,6 +20,7 @@ import TupleType from './types/TupleType'
 import UnionType from './types/UnionType'
 import VoidType from './types/VoidType'
 import Validation from './Validation'
+import RuntimeTypeError from './errorReporting/RuntimeTypeError'
 
 export {
   Type,
@@ -44,6 +45,7 @@ export {
   UnionType,
   VoidType,
   Validation,
+  RuntimeTypeError,
 }
 
 export const any = (): Type<any> => new AnyType()