question: this method is used for getting the reference to data source . it is used to link custom inputs inputs of custom module type to system input defined by the system module type . the system module type uses only system inputs . concode_field_sep String reference concode_elem_sep boolean required concode_elem_sep String defaultValue concode_elem_sep String name concode_elem_sep String description concode_elem_sep String label concode_elem_sep String type concode_elem_sep Set<String> tags concode_field_sep boolean isRequired concode_elem_sep String getName concode_elem_sep String getLabel concode_elem_sep String getType concode_elem_sep Set<String> getTags concode_elem_sep String toString concode_elem_sep String getDescription concode_elem_sep String getDefaultValue
target: String function ( ) { return reference ; }