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U)tyycJPT T Us; BAA*A(A*&B(A** B5B  BBcV^8dQhRR/#rr')r(s"r)r*r)Br+c R#r]r'rns&r)r1AlreadyInstalledCandidate.get_install_requirementr+)r`rarcrO)rwrrrrrWrgrorxrrrrr@r3rrrrrr'r+r)r r lsLKP$;I /((!! ""9Ur+c]tRtRtRtRR/RRlltRRltR R ltR R ltR Rlt ] RRl4t ] RRl4t ] RRl4t RRlt] RRl4t] RRl4t] RRl4tRRltRR ltR!tR#)"ExtrasCandidateiaA candidate that has 'extras', indicating additional dependencies. Requirements can be for a project with dependencies, something like foo[extra]. The extras don't affect the project/version being installed directly, but indicate that we need additional dependencies. We model that by having an artificial ExtrasCandidate that wraps the "base" candidate. The ExtrasCandidate differs from the base in the following ways: 1. It has a unique name, of the form foo[extra]. This causes the resolver to treat it as a separate node in the dependency graph. 2. 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