Adds appropriate methods.

Codecov Report

Merging #140 into master will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #140   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines          139       140    +1     
  Branches        34        34           
=========================================
+ Hits           139       140    +1     

Impacted Files	Coverage Δ
src/commands.js	100.00% <100.00%> (ø)

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Codecov Report

Merging #140 (5409119) into master (18597dd) will not change coverage. The diff coverage is 100.00%.

:exclamation: Current head 5409119 differs from pull request most recent head 77ac9a2. Consider uploading reports for the commit 77ac9a2 to get more accurate results

@@            Coverage Diff            @@
##            master      #140   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines          146       140    -6     
  Branches        37        34    -3     
=========================================
- Hits           146       140    -6     

Impacted Files	Coverage Δ
src/commands.js	100.00% <100.00%> (ø)
src/index.js	100.00% <0.00%> (ø)

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