Constant VC_COMPONENT_ID 

pub const VC_COMPONENT_ID: u16 = 0x667A;

Available on crate feature extensions-draft and crate feature virtual-clients-draft and (32-bit or 64-bit) only.

Component ID under which the virtual-clients derivation info is carried in the leaf node’s app_data_dictionary extension.

0x667A is the temporary, random value until the draft is further along the publication process.