global class MatchEngineSettings { global Set matchableFields; global Integer maxBatchSize; global Integer maxMatchResults; global Integer minMatchConfidenceThreshold; global MatchEngineSettings(Integer maxBatchSize, Integer maxMatchResults, Integer minMatchConfidenceThreshold, Set matchableFields) { } global MatchEngineSettings(Integer maxBatchSize, Integer maxMatchResults, Integer minMatchConfidenceThreshold) { } global Object clone() { } }