public CreateBackendAuthUserPoolConfig withRequiredSignUpAttributes(RequiredSignUpAttributesElement... requiredSignUpAttributes) {
        java.util.ArrayList<String> requiredSignUpAttributesCopy = new java.util.ArrayList<String>(requiredSignUpAttributes.length);
        for (RequiredSignUpAttributesElement value : requiredSignUpAttributes) {
            requiredSignUpAttributesCopy.add(value.toString());
        }
        if (getRequiredSignUpAttributes() == null) {
            setRequiredSignUpAttributes(requiredSignUpAttributesCopy);
        } else {
            getRequiredSignUpAttributes().addAll(requiredSignUpAttributesCopy);
        }
        return this;
    }
<p>
The required attributes to sign up new users in the user pool.
</p>

@param requiredSignUpAttributes
       The required attributes to sign up new users in the user pool.
@return Returns a reference to this object so that method calls can be chained together.
@see RequiredSignUpAttributesElement
aws-java-sdk-amplifybackend/src/main/java/com/amazonaws/services/amplifybackend/model/CreateBackendAuthUserPoolConfig.java