Want to get type of filters.

### Environment information

```plain text
System:
OS: macOS 15.1
CPU: (8) arm64 Apple M2
Memory: 146.84 MB / 16.00 GB
Shell: /bin/zsh
Binaries:
Node: 20.9.0 - /usr/local/bin/node
Yarn: 1.22.19 - /usr/local/bin/yarn
npm: 10.1.0 - /usr/local/bin/npm
pnpm: undefined - undefined
NPM Packages:
@aws-amplify/auth-construct: 1.4.0
@aws-amplify/backend: 1.6.0
@aws-amplify/backend-auth: 1.3.0
@aws-amplify/backend-cli: 1.4.0
@aws-amplify/backend-data: 1.1.6
@aws-amplify/backend-deployer: 1.1.6
@aws-amplify/backend-function: 1.7.3
@aws-amplify/backend-output-schemas: 1.4.0
@aws-amplify/backend-output-storage: 1.1.3
@aws-amplify/backend-secret: 1.1.4
@aws-amplify/backend-storage: 1.2.2
@aws-amplify/cli-core: 1.2.0
@aws-amplify/client-config: 1.5.1
@aws-amplify/deployed-backend-client: 1.4.2
@aws-amplify/form-generator: 1.0.3
@aws-amplify/model-generator: 1.0.8
@aws-amplify/platform-core: 1.1.0
@aws-amplify/plugin-types: 1.3.1
@aws-amplify/sandbox: 1.2.4
@aws-amplify/schema-generator: 1.2.5
aws-amplify: 6.10.2
aws-cdk: 2.164.1
aws-cdk-lib: 2.164.1
typescript: 5.6.3
AWS environment variables:
AWS_STS_REGIONAL_ENDPOINTS = regional
AWS_NODEJS_CONNECTION_REUSE_ENABLED = 1
AWS_SDK_LOAD_CONFIG = 1
No CDK environment variables
```

### Describe the feature

The `listBy... `, which is generated when the secondary index is used, is exported and can be used by `import type`.

### Use case

The methods of `listBy... ` methods with application-side sort key switch statements, even if the function type is any type to avoid the error “Stack to compare is too deep. ts(2321)”, it can still be used for type completion to work properly.