# description
Indicates the purpose of a bundle - how it is intended to be used.

# concept[].definition
The bundle is a document. The first resource is a Composition.

# concept[].definition
The bundle is a message. The first resource is a MessageHeader.

# concept[].definition
The bundle is a transaction - intended to be processed by a server as an atomic commit.

# concept[].definition
The bundle is a transaction response. Because the response is a transaction response, the transaction has succeeded, and all responses are error free.

# concept[].definition
The bundle is a set of actions - intended to be processed by a server as a group of independent actions.

# concept[].definition
The bundle is a batch response. Note that as a batch, some responses may indicate failure and others success.

# concept[].definition
The bundle is a list of resources from a history interaction on a server.

# concept[].definition
The bundle is a list of resources returned as a result of a search/query interaction, operation, or message.

# concept[].definition
The bundle is a set of resources collected into a single package for ease of distribution that imposes no processing obligations or behavioral rules beyond persistence.