# policies
SEQUENTIAL = "sequential"
STAR = "star"
EXTERNAL_STAR = "external_star"
TRIU = "triu"
TRIL = "tril"
EXPLICIT = "explicit"
DUMMY = "dummy"
# plotting
CELL_TRANSITION = "cell_transition"
SANKEY = "sankey"
PUSH = "push"
PULL = "pull"
