Argument contains an argument to fulfill a parameter.

Array represents an array.

Document is the root of Spread data stored in a Git blob.

DocumentInfo provides metadata about an document.

Field represents a field of an object.

Link represents a relationship to another field.

Object represents a map with strings for keys.

Parameter allows user input to be used in producing the output of the field.

A SRI represents a parsed Spread Resource Identifier (SRI), a globally unique address for a document or field stored within a repository.