public DimensionGroupDetail withDimensions(DimensionDetail... dimensions) {
        if (this.dimensions == null) {
            setDimensions(new java.util.ArrayList<DimensionDetail>(dimensions.length));
        }
        for (DimensionDetail ele : dimensions) {
            this.dimensions.add(ele);
        }
        return this;
    }
<p>
The dimensions within a dimension group.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setDimensions(java.util.Collection)} or {@link #withDimensions(java.util.Collection)} if you want to
override the existing values.
</p>

@param dimensions
       The dimensions within a dimension group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pi/src/main/java/com/amazonaws/services/pi/model/DimensionGroupDetail.java