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0.3.7 by Randy Lai, a year ago
https://github.com/randy3k/collections/
Browse source code at https://github.com/cran/collections
Authors: Randy Lai [aut, cre] , Andrea Mazzoleni [cph] (tommy hash table library) , Yann Collet [cph] (xxhash algorithm)
Documentation: PDF Manual
MIT + file LICENSE license
Suggests testthat
Imported by R6P, duckplyr, languageserver, multiverse.
See at CRAN