CBLValueIndexConfiguration
@interface CBLValueIndexConfiguration : CBLIndexConfiguration
/**
 Constructor for creating a value index by using an array of expression strings.
 */
- (instancetype) initWithExpression: (NSArray<NSString*>*)expressions;
@endUndocumented
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                  Constructor for creating a value index by using an array of expression strings. DeclarationObjective-C - (nonnull instancetype)initWithExpression: (nonnull NSArray<NSString *> *)expressions;
 CBLValueIndexConfiguration Class Reference
        CBLValueIndexConfiguration Class Reference