| ### Data Structures interface_id The interface identifier of an RPC interface which can be in dcecp syntax or string syntax. The dcecp syntax takes the following form: {interface-uuid major-version.minor-version} The string syntax can have no spaces and takes the following form: interface-uuid,major-version.minor-version Version numbers are optional, but if you omit a version number, the value defaults to 0. The UUID is a hexadecimal string and the version numbers are decimal strings, for example: -interface {ec1eeb60-5943-11c9-a309-08002b102989 3.11} Leading zeros in version numbers are ignored. Alternatively, you can use dcecp string syntax in the following form: {interface-uuid major-version.minor-version} For example: -interface {458ffcbe-98c1-11cd-bd93-0000c08adf56 1.0} ###