ConfigurationException.missingKeys constructor Null safety

ConfigurationException.missingKeys(
  1. Configuration configuration,
  2. List<String> missingKeys,
  3. {List keyPath = const []}
)

Implementation

ConfigurationException.missingKeys(
  this.configuration,
  List<String> missingKeys, {
  this.keyPath = const [],
}) : message =
          "missing required key(s): ${missingKeys.map((s) => "'$s'").join(", ")}";