Add support for Dataproc Flexible Machine Types in compute profiles - #16204

Unused import - com.google.api.gax.rpc.ApiException.

Unused import - java.util.ArrayList.

Extra separation in import group before 'io.grpc.Status'

Wrong lexicographical order for 'io.grpc.Status' import. Should be before 'javax.annotation.Nullable'.

Distance between variable 'privateInstance' declaration and its first usage is 4, but allowed 3.  Consider making that variable final if you still need to store its value in advance (before method calls that might have side effects on the original value).

Line continuation have incorrect indentation level, expected level should be 4.

File does not end with a newline.

Unused import - java.util.Optional.

File does not end with a newline.

WhitespaceAround: '{' is not preceded with whitespace.