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@ -1,7 +1,7 @@
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#lang racket/base
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;; 181030: Needed for compatibility with Racket 6.0.
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;; This module introduced until 6.3.
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;; 190303: Needed for compatibility with Rackets < 6.7.
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;; #:logger argument not introduced until 6.7
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(require racket/contract/base)
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