Cast deps to empty

[jawoznia]

closes #201

[codecov[bot]]

Codecov Report

Merging #214 (eb70379) into custom_queries (5e17605) will decrease coverage by 0.25%. The diff coverage is 83.33%.

@@                Coverage Diff                 @@
##           custom_queries     #214      +/-   ##
==================================================
- Coverage           88.02%   87.78%   -0.25%     
==================================================
  Files                  25       24       -1     
  Lines                1278     1302      +24     
==================================================
+ Hits                 1125     1143      +18     
- Misses                153      159       +6     

Files Changed	Coverage Δ
sylvia/tests/custom_msg.rs	100.00% <ø> (ø)
sylvia-derive/src/parser.rs	84.53% <77.77%> (-0.70%)	:arrow_down:
sylvia/tests/custom_query.rs	92.00% <80.00%> (-3.00%)	:arrow_down:
sylvia-derive/src/message.rs	83.73% <92.30%> (+0.12%)	:arrow_up:

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