Add traits for easier error handling to todo list

Implementing Into<CommandError> for (Device, CommandError) might allow a
user to use the ? operator on methods like authenticate_user within a
method returning a CommandError.

1 files changed, 1 insertions, 0 deletions

diff --git a/TODO.md b/TODO.md
index dea7144..a2b6395 100644
--- a/TODO.md
+++ b/TODO.md
@@ -37,3 +37,4 @@
 - More specific error checking in the tests.
 - Differentiate empty strings and errors (see `result_from_string`).
 - Check integer conversions.
+- Consider implementing `Into<CommandError>` for `(Device, CommandError)`