const downloadUrls = await sdk.files.download({
  files: [
    {
      matterId: matterId,
      id: fileId
    }
  ]
});

const request: GetMatterFilesRequest = {
 matterId: '410f2b2b-7adf-436e-a5fd-dab1733d3fba',
 // The folder id can be left empty and will default to the root directory.
 folderId: '410f2b2b-7adf-436e-a5fd-dab1733d3fbb',
 limit: 10,
 offset: 0
}
const files = sdk.files.getMany(request);

const request: FileRequest = {
 id: 'da06e491-3a68-4da1-be1c-7e734491bbe6',
 versionId: '410f2b2b-7adf-436e-a5fd-dab1733d3fba'
}
sdk.files.open(request);

const request: SelectFilesRequest = {
 confirmationText: 'SELECT',
 fileSelectionLimit: 2,
 showEmails: false,
}
sdk.files.select(request);