Insert the given association.
Prepend the given association.
Remove the given field association.
Append the given association.
Returns true if there is an association with the given field.
Return the JSON value associated with the given field.
Returns all association keys in arbitrary order.
Returns all association keys in insertion order.
Returns true if there are no associations.
Returns true if there is at least one association.
Map Json values.
Returns the number of associations.
Returns the list of associations in insertion order.
Convert to a map.
Returns all associated values in insertion order.
Transform all associated JSON values.
A mapping from field to JSON value that maintains insertion order.