How to use the jedi.debug function in jedi

types = ContextSet.from_set(types)

        if not types:
            path = import_path + [from_import_name]
            importer = Importer(evaluator, tuple(path),
                                module_context, import_node.level)
            types = importer.follow()
            # goto only accepts `Name`
            if is_goto:
                types = set(s.name for s in types)
    else:
        # goto only accepts `Name`
        if is_goto:
            types = set(s.name for s in types)

    debug.dbg('after import: %s', types)
    return types

def _execute_code(module_path, code):
    c = "import os; from os.path import *; result=%s"
    variables = {'__file__': module_path}
    try:
        exec_function(c % code, variables)
    except Exception:
        debug.warning('sys.path manipulation detected, but failed to evaluate.')
        return None
    try:
        res = variables['result']
        if isinstance(res, str):
            return os.path.abspath(res)
        else:
            return None
    except KeyError:
        return None

stmt = Statement(self._sub_module, [], used_vars, [],
                                     start_pos, arr.end_pos)
                    arr.parent = stmt
                    stmt.token_list = stmt._commands = [arr]
                else:
                    for v in stmt.used_vars:
                        v.parent = stmt
                return stmt, tok

            st = Statement(self._sub_module, [], [], token_list, start_pos,
                           end_pos)

            middle, tok = parse_stmt_or_arr(token_iterator,
                                            added_breaks=['in'])
            if tok != 'in' or middle is None:
                debug.warning('list comprehension middle @%s' % str(start_pos))
                return None, tok

            in_clause, tok = parse_stmt_or_arr(token_iterator)
            if in_clause is None:
                debug.warning('list comprehension in @%s' % str(start_pos))
                return None, tok

            return ListComprehension(st, middle, in_clause, self), tok

def wrapper(value, *args, **kwargs):
            arguments = kwargs.pop('arguments')
            callback = kwargs.pop('callback')
            assert not kwargs  # Python 2...
            debug.dbg('builtin start %s' % value, color='MAGENTA')
            if want_context:
                kwargs['context'] = arguments.context
            if want_value:
                kwargs['value'] = value
            if want_inference_state:
                kwargs['inference_state'] = value.inference_state
            if want_arguments:
                kwargs['arguments'] = arguments
            if want_callback:
                kwargs['callback'] = callback
            result = func(*args, **kwargs)
            debug.dbg('builtin end: %s', result, color='MAGENTA')
            return result

return
    bin_path = os.path.join(project_root, 'bin')
    if not os.path.exists(bin_path):
        return

    for filename in os.listdir(bin_path):
        try:
            filepath = os.path.join(bin_path, filename)
            with open(filepath, 'r') as f:
                firstline = f.readline()
                if firstline.startswith('#!') and 'python' in firstline:
                    yield filepath
        except (UnicodeDecodeError, IOError) as e:
            # Probably a binary file; permission error or race cond. because
            # file got deleted. Ignore it.
            debug.warning(unicode(e))
            continue

@debug.increase_indent
def _infer_expr_stmt(context, stmt, seek_name=None):
    """
    The starting point of the completion. A statement always owns a call
    list, which are the calls, that a statement does. In case multiple
    names are defined in the statement, `seek_name` returns the result for
    this name.

    expr_stmt: testlist_star_expr (annassign | augassign (yield_expr|testlist) |
                     ('=' (yield_expr|testlist_star_expr))*)
    annassign: ':' test ['=' test]
    augassign: ('+=' | '-=' | '*=' | '@=' | '/=' | '%=' | '&=' | '|=' | '^=' |
                '<<=' | '>>=' | '**=' | '//=')

    :param stmt: A `tree.ExprStmt`.
    """
    def check_setitem(stmt):

else:
                if check_yields:
                    value_set |= ValueSet.from_sets(
                        lazy_value.infer()
                        for lazy_value in self._get_yield_lazy_value(r)
                    )
                else:
                    try:
                        children = r.children
                    except AttributeError:
                        ctx = compiled.builtin_from_name(self.inference_state, u'None')
                        value_set |= ValueSet([ctx])
                    else:
                        value_set |= self.infer_node(children[1])
            if check is flow_analysis.REACHABLE:
                debug.dbg('Return reachable: %s', r)
                break
        return value_set

def matches_signature(self, arguments):
        from jedi.inference.param import get_executed_param_names_and_issues
        executed_param_names, issues = \
            get_executed_param_names_and_issues(self._function_value, arguments)
        if issues:
            return False

        matches = all(executed_param_name.matches_signature()
                      for executed_param_name in executed_param_names)
        if debug.enable_notice:
            tree_node = self._function_value.tree_node
            signature = parser_utils.get_signature(tree_node)
            if matches:
                debug.dbg("Overloading match: %s@%s (%s)",
                          signature, tree_node.start_pos[0], arguments, color='BLUE')
            else:
                debug.dbg("Overloading no match: %s@%s (%s)",
                          signature, tree_node.start_pos[0], arguments, color='BLUE')
        return matches

def _execute_code(module_path, code):
    c = "import os; from os.path import *; result=%s"
    variables = {'__file__': module_path}
    try:
        exec_function(c % code, variables)
    except Exception:
        debug.warning('sys.path manipulation detected, but failed to evaluate.')
    else:
        try:
            res = variables['result']
            if isinstance(res, str):
                return [os.path.abspath(res)]
        except KeyError:
            pass
    return []

@debug.increase_indent
def search_params(evaluator, execution_context, funcdef):
    """
    A dynamic search for param values. If you try to complete a type:

    >>> def func(foo):
    ...     foo
    >>> func(1)
    >>> func("")

    It is not known what the type ``foo`` without analysing the whole code. You
    have to look for all calls to ``func`` to find out what ``foo`` possibly
    is.
    """
    if not settings.dynamic_params:
        return set()