Property(mapping=None, *, ignore_unknown_fields=False, **kwargs)
Defines properties that can be part of the entity type.
The name of the property. Follows the same guidelines as the EntityType name.
A reference to the value type of the property. This type is subject to the same conventions as the
Occurrence type limits the number of instances an entity type appears in the document.
Types of occurrences of the entity type in the document. This
represents the number of instances of instances of an entity, not
number of mentions of an entity. For example, a bank statement may
only have one
account_number, but this account number may be
mentioned in several places on the document. In this case the
'account_number' would be considered a
type. If, on the other hand, we expect a bank statement to contain
the status of multiple different accounts for the customers, the
occurrence type will be set to
Values: OCCURRENCE_TYPE_UNSPECIFIED (0): Unspecified occurrence type. OPTIONAL_ONCE (1): There will be zero or one instance of this entity type. The same entity instance may be mentioned multiple times. OPTIONAL_MULTIPLE (2): The entity type will appear zero or multiple times. REQUIRED_ONCE (3): The entity type will only appear exactly once. The same entity instance may be mentioned multiple times. REQUIRED_MULTIPLE (4): The entity type will appear once or more times.