## items Type

merged type ([Details](definition-properties-keys-items.md))

one (and only one) of

*   [Substrate uri](definition-properties-keys-items-oneof-substrate-uri.md "check type definition")

*   [Mnemonic phrase](definition-properties-keys-items-oneof-mnemonic-phrase.md "check type definition")

*   [JSON backup file](definition-properties-keys-items-oneof-json-backup-file.md "check type definition")