public DozerBeanMapperBuilder withCustomConvertersWithIds(Map<String, CustomConverter> customConvertersWithId) {
        if (customConvertersWithId != null) {
            this.customConvertersWithId.putAll(customConvertersWithId);
        }
        return this;
    }
Registers a {@link CustomConverter} which can be referenced in mapping by provided ID.
Consecutive calls of this method with the same ID will override previously provided value.
<p>
Converter instances provided this way are considered stateful and will not be initialized for each mapping.
<p>
By default, no converters with IDs are registered.

@param customConvertersWithId converters to be used by mapper.
@return modified builder to be further configured.
core/src/main/java/com/github/dozermapper/core/DozerBeanMapperBuilder.java