def add_connection(from_node_id, to_node_id, process_dict, diagram_graph, sequence_flows):
add_outgoing_flow(from_node_id, to_node_id, diagram_graph)<EOL>add_incoming_flow(to_node_id, from_node_id, diagram_graph)<EOL>add_edge(from_node_id, to_node_id, process_dict, diagram_graph, sequence_flows)<EOL>
:param from_node_id:
:param to_node_id:
:param process_dict:
:param diagram_graph:
:param sequence_flows: