# cirq.Circuit.insert¶

Circuit.insert(index: int, moment_or_operation_tree: Union[cirq.ops.moment.Moment, cirq.ops.raw_types.Operation, Iterable[Any]], strategy: cirq.circuits.insert_strategy.InsertStrategy = cirq.InsertStrategy.EARLIEST) → int[source]
Inserts operations into the circuit.
Operations are inserted into the moment specified by the index and
‘InsertStrategy’.
Moments within the operation tree are inserted intact.
Parameters: index – The index to insert all of the operations at. moment_or_operation_tree – The moment or operation tree to insert. strategy – How to pick/create the moment to put operations into. The insertion index that will place operations just after the operations that were inserted by this method. ValueError – Bad insertion strategy.