public Builder setRegistryMirrors(ListMultimap<String, String> registryMirrors) {
      this.registryMirrors = ImmutableListMultimap.copyOf(registryMirrors);
      return this;
    }
Sets the registry mirrors.

@param registryMirrors registry mirrors
@return this
jib-core/src/main/java/com/google/cloud/tools/jib/configuration/BuildContext.java