assert_all_are_existing	is_existing
assert_all_are_valid_variable_names	is_valid_variable_name
assert_any_are_existing	is_existing
assert_any_are_valid_variable_names	is_valid_variable_name
assert_has_arg	has_arg
assert_is_binding_locked	is_binding_locked
assert_is_debugged	is_debugged
assert_is_if_condition	is_if_condition
assert_is_loaded	is_loaded
assert_is_valid_r_code	is_valid_r_code
has_arg	has_arg
has_arg_	has_arg
is_binding_locked	is_binding_locked
is_debugged	is_debugged
is_error_free	is_error_free
is_existing	is_existing
is_if_condition	is_if_condition
is_loaded	is_loaded
is_valid_r_code	is_valid_r_code
is_valid_variable_name	is_valid_variable_name
