lib: improve error handling

[q9f]

No description provided.

[codecov-commenter]

Codecov Report

Merging #39 (5bcc903) into main (3084cfa) will increase coverage by 0.47%.
The diff coverage is 98.72%.

@@            Coverage Diff             @@
##             main      #39      +/-   ##
==========================================
+ Coverage   99.32%   99.80%   +0.47%     
==========================================
  Files          35       35              
  Lines        2520     2561      +41     
==========================================
+ Hits         2503     2556      +53     
+ Misses         17        5      -12     

Impacted Files	Coverage Δ
lib/eth/tx/eip1559.rb	98.67% <85.71%> (+1.98%)	⬆️
lib/eth/tx/eip2930.rb	98.61% <85.71%> (+2.08%)	⬆️
lib/eth/tx.rb	98.94% <93.75%> (+1.12%)	⬆️
lib/eth/abi.rb	100.00% <100.00%> (ø)
lib/eth/address.rb	100.00% <100.00%> (ø)
lib/eth/chain.rb	100.00% <100.00%> (ø)
lib/eth/eip712.rb	100.00% <100.00%> (ø)
lib/eth/key.rb	100.00% <100.00%> (ø)
lib/eth/key/decrypter.rb	100.00% <100.00%> (ø)
lib/eth/key/encrypter.rb	100.00% <100.00%> (ø)
... and 16 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3084cfa...5bcc903. Read the comment docs.