public Builder setImportanceLevel(
          com.google.cloud.talent.v4.SearchJobsRequest.CustomRankingInfo.ImportanceLevel value) {
        if (value == null) {
          throw new NullPointerException();
        }
        bitField0_ |= 0x00000001;
        importanceLevel_ = value.getNumber();
        onChanged();
        return this;
      }
<pre>
Required. Controls over how important the score of
[CustomRankingInfo.ranking_expression][google.cloud.talent.v4.SearchJobsRequest.CustomRankingInfo.ranking_expression]
gets applied to job's final ranking position.

An error is thrown if not specified.
</pre>

<code>
.google.cloud.talent.v4.SearchJobsRequest.CustomRankingInfo.ImportanceLevel importance_level = 1 [(.google.api.field_behavior) = REQUIRED];
</code>

@param value The importanceLevel to set.
@return This builder for chaining.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/SearchJobsRequest.java