GFQL API Reference# AST Objects ASTSerializable ASTSerializable ASTObject ASTObject ASTEdge ASTEdge ASTPredicate ASTPredicate GFQL Chain Matcher Chain Chain.from_json() Chain.to_json() Chain.validate() chain() combine_steps() GFQL Edge Matchers e_forward e_forward ASTEdgeForward e_reverse e_reverse ASTEdgeReverse e e ASTEdgeUndirected GFQL Hop Matcher hop() query_if_not_none() GFQL Node Matchers n GFQL Attribute Matchers Categorical Is In Numeric String Predicates Temporal