Abstract Syntax Tree# exception yaflux._ast.AstSelfMutationError(func_name, mutated)[source]# Bases: Exception Raised when self is mutated in a function. exception yaflux._ast.AstUndeclaredUsageError(func_name, undeclared)[source]# Bases: Exception Raised when an undeclared variable is used in the AST. yaflux._ast.validate_ast(func, requires, mutates)[source]# Parse a function’s AST and perform validation checks. Return type: None