public ResourceFilters withAccountId(String accountId) {
        setAccountId(accountId);
        return this;
    }
<p>
The 12-digit source account ID.
</p>

@param accountId
       The 12-digit source account ID.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-config/src/main/java/com/amazonaws/services/config/model/ResourceFilters.java