A condition on which this delete operation's completion will be
predicated.
Optional returnValues
returnValues:"ALL_OLD" | "NONE"
The values to return from this operation.
Optional skipVersionCheck
skipVersionCheck:undefined | true | false
Whether this operation should NOT honor the version attribute specified
in the schema by incrementing the attribute and preventing the operation
from taking effect if the local version is out of date.
A condition on which this delete operation's completion will be predicated.