function compileTrust(rangeSubnets) {
  // Return optimized function based on length
  var len = rangeSubnets.length;
  return len === 0
    ? trustNone
    : len === 1
    ? trustSingle(rangeSubnets[0])
    : trustMulti(rangeSubnets);
}
Compile range subnet array into trust function.

@param {Array} rangeSubnets
@api private