public String getExistingRuleContentSha256() {
        return this.existingRuleContentSha256;
    }
<p>
The SHA-256 hash signature for the content of the approval rule. You can retrieve this information by using
<a>GetPullRequest</a>.
</p>

@return The SHA-256 hash signature for the content of the approval rule. You can retrieve this information by
        using <a>GetPullRequest</a>.
aws-java-sdk-codecommit/src/main/java/com/amazonaws/services/codecommit/model/UpdatePullRequestApprovalRuleContentRequest.java