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There is a newer version: 10.20.0.29356

Return of boolean literal statements wrapped into if-then-else flow should be simplified.
Note that if the result of the expression is not a boolean but for instance an integer, then double negation should be used for proper
conversion.
if (expression) {
  return true;
} else {
  return false;
}

or
if (expression) {
  return true;
}
return false;

Compliant Solution
return expression;

or
return !!expression;