public <T> Optional<RowMapper<T>> findMapperFor(QualifiedType<T> type) {
        return getConfig(Mappers.class).findFor(type);
    }
Obtain a mapper for the given qualified type in this context.

@param type the target qualified type to map to
@return a mapper for the given qualified type, or empty if no row or column mappers
is registered for the given type.
core/src/main/java/org/jdbi/v3/core/statement/StatementContext.java