public long getMultiplier() {
      return multiplier;
    }
Enum which defines memory unit, mostly used to parse value from configuration file.

<p>To make larger values more compact, the common size suffixes are supported:

<ul>
  <li>1b or 1bytes (bytes)
  <li>1k or 1kb or 1kibibytes (interpreted as kibibytes = 1024 bytes)
  <li>1m or 1mb or 1mebibytes (interpreted as mebibytes = 1024 kibibytes)
  <li>1g or 1gb or 1gibibytes (interpreted as gibibytes = 1024 mebibytes)
  <li>1t or 1tb or 1tebibytes (interpreted as tebibytes = 1024 gibibytes)
</ul>
amoro-common/src/main/java/org/apache/amoro/utils/MemorySize.java