The key of the property.
The actual value.
The metadata of the property.
The name of the header.
The name of the header.
The name of the header.
The name of the header.
The name of the header.
Metadata for the items inside this array parameter.
The name of the header.
The key of the parent, if it exists.
The entity that this value belongs to.
All validation problems found.
Validates the given date property.