contains method
Implementation
bool contains(
num number, {
bool lowerInclusive = true,
bool upperInclusive = false,
}) {
if (lowerInclusive && (number < lower)) {
return false;
} else if (!lowerInclusive && (number <= lower)) {
return false;
} else if (upperInclusive && (number > upper)) {
return false;
} else if (!upperInclusive && (number >= upper)) {
return false;
} else {
return true;
}
}