public void setAllOf(java.util.Collection<String> allOf) {
        if (allOf == null) {
            this.allOf = null;
            return;
        }

        this.allOf = new java.util.ArrayList<String>(allOf);
    }
<p>
Requires all of the step attribute values.
</p>

@param allOf
       Requires all of the step attribute values.
aws-java-sdk-deadline/src/main/java/com/amazonaws/services/deadline/model/StepAttributeCapability.java