{"textDocument": {"uri": "file:///completionPrefixIssue.lean"},
 "position": {"line": 1, "character": 64}}
{"items":
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   "kind": 6,
   "data":
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  {"label": "veryLongDefinitionNameVeryLongDefinitionName",
   "kind": 21,
   "data":
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 "isIncomplete": false}
Resolution of veryLongDefinitionName:
{"label": "veryLongDefinitionName",
 "kind": 6,
 "detail": "Nat",
 "data":
 ["«external:file:///completionPrefixIssue.lean»", 1, 64, 0, "f_uniq.39"]}
Resolution of veryLongDefinitionNameVeryLongDefinitionName:
{"label": "veryLongDefinitionNameVeryLongDefinitionName",
 "kind": 21,
 "detail": "Nat",
 "data":
 ["«external:file:///completionPrefixIssue.lean»",
  1,
  64,
  0,
  "cveryLongDefinitionNameVeryLongDefinitionName"]}