@Override
    public void setRegistry(ConfigRegistry registry) {
        this.rowMappers = registry.get(RowMappers.class);
        this.columnMappers = registry.get(ColumnMappers.class);
    }
Configuration class for obtaining row or column mappers.
<p>
This configuration is merely a convenience class, and does not have any
configuration of its own. All methods delegate to {@link RowMappers} or
{@link ColumnMappers}.
core/src/main/java/org/jdbi/v3/core/mapper/Mappers.java