API Reference# Base Class Base Step Decorator step() Metadata Metadata Results FlagError FlagLock Results ResultsLock UnauthorizedMutationError Graph CircularDependencyError MutabilityConflictError build_read_graph() build_write_graph() compute_topological_levels() validate_incompatible_mutability() Executor Abstract Syntax Tree AstSelfMutationError AstUndeclaredUsageError validate_ast()