It seems like $body defined by parameter $body on line 17 can also be of type null; however, GuzzleHttp\Psr7\stream_for() does only seem to accept string|resource|object<P...essage\StreamInterface>, maybe add an additional type check?
This check looks at variables that have been passed in as parameters and are passed out again
to other methods.
If the outgoing method call has stricter type requirements than the method itself, an issue is raised.
php-http /
message
This check looks at variables that have been passed in as parameters and are passed out again to other methods.
If the outgoing method call has stricter type requirements than the method itself, an issue is raised.
An additional type check may prevent trouble.