private void ensureRequestedAnnotationsIsMutable() {
      if (!((bitField0_ & 0x00000010) != 0)) {
        requestedAnnotations_ =
            new java.util.ArrayList<com.google.cloud.visionai.v1.Annotation>(requestedAnnotations_);
        bitField0_ |= 0x00000010;
      }
    }
<pre>
Available to IMAGE corpus types.
Relevance of this `SearchResultItem` to user search query (text query or
image query).
By default this represents cosine similarity between the query and the
retrieved media content. The value is in the range of [-1, 1].
Note that search ranking is not only decided by this relevance score,
but also other factors such as the match of annotations.
</pre>

<code>double relevance = 6;</code>

@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/SearchResultItem.java