NEST by Elastic and contributors

<PackageReference Include="NEST" Version="6.8.5" />

.NET API 5,339,136 bytes

 CompletionSuggester

public class CompletionSuggester : SuggesterBase, ICompletionSuggester, ISuggester
public IDictionary<string, IList<ISuggestContextQuery>> Contexts { get; set; }

Context mappings used to filter and/or boost suggestions

public IFuzzySuggester Fuzzy { get; set; }

Support fuzziness for the suggestions

public string Prefix { get; set; }

Prefix used to search for suggestions

public string Regex { get; set; }

Prefix as a regular expression used to search for suggestions

public bool? SkipDuplicates { get; set; }

Whether duplicate suggestions should be filtered out. Defaults to false

public CompletionSuggester()