message: Fix typo 'DateTimeTypeDefinition'
diff: @@ -245,7 +245,7 @@ const server = new ApolloServer({
  typeDefs: [
  // use spread syntax to add scalar definitions to your schema
  ...typeDefs,
  - // DateTimeDefinition,
  + // DateTimeTypeDefinition,
  // ...
  // ... other type definitions ...
  ],
  @@ -278,7 +278,7 @@ const server = new ApolloServer({
  typeDefs: [
  // use spread syntax to add scalar definitions to your schema
  ...typeDefs,
  - // DateTimeDefinition,
  + // DateTimeTypeDefinition,
  // ...
  // ... other type definitions ...
  ],
  