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(", ")}";