warning[DoubleQuotes]: string defined with single quotes
  ┌─ tests/lints/double-quotes/source.wdl:9:18
  │
9 │     String bad = 'this string is not okay'
  │                  ^^^^^^^^^^^^^^^^^^^^^^^^^
  │
  = fix: change the single quotes to double quotes

warning[DoubleQuotes]: string defined with single quotes
   ┌─ tests/lints/double-quotes/source.wdl:12:13
   │  
12 │ ╭             'but this is not and ~{
13 │ │                 "while this one is okay ~{
14 │ │                     'this one is not'
15 │ │                 }"
16 │ │             }'
   │ ╰──────────────^
   │  
   = fix: change the single quotes to double quotes

warning[DoubleQuotes]: string defined with single quotes
   ┌─ tests/lints/double-quotes/source.wdl:14:21
   │
14 │                     'this one is not'
   │                     ^^^^^^^^^^^^^^^^^
   │
   = fix: change the single quotes to double quotes