@types/ssh2 are required when using TS `strictMode`

When using Typescript's strictMode, the compilation fails with the following error:

node_modules/node-ssh/lib/typings/index.d.ts:2:110 - error TS7016: Could not find a declaration file for module 'ssh2'. './node_modules/ssh2/lib/client.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/ssh2` if it exists or add a new declaration (.d.ts) file containing `declare module 'ssh2';`

2 import SSH2, { ConnectConfig, ClientChannel, SFTPWrapper, ExecOptions, PseudoTtyOptions, ShellOptions } from 'ssh2';
                                                                                                               ~~~~~~

node_modules/node-ssh/lib/typings/index.d.ts:3:41 - error TS7016: Could not find a declaration file for module 'ssh2-streams'. './node_modules/ssh2-streams/index.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/ssh2-streams` if it exists or add a new declaration (.d.ts) file containing `declare module 'ssh2-streams';`

3 import { Prompt, TransferOptions } from 'ssh2-streams';
                                          ~~~~~~~~~~~~~~


Found 2 errors.

The fix is quite easy, simply install @types/ssh2 (which also installs @types/ssh2-streams, see here:

npm i --save-dev @types/ssh2

I think that installing the types dependencies is not the responsibility of the end user. Shouldn't the @types/ssh2 be installed as part of node-ssh dependencies or peerDependencies?

Start by checking how node-ssh declares dependencies and inspect the imports in node_modules/node-ssh/lib/typings/index.d.ts. Reproduce the reported TypeScript strictMode compilation failure, then verify that a consumer no longer needs to install the ssh2 type packages separately.