parameters: (node)
return_statement: return node.__class__.__name__ in expr_class_names
docstring: Returns whether node is an expression node.
docstring_summary: Returns whether node is an expression node.
docstring_tokens: Returns whether node is an expression node .
function: def is_expr(node):
    """Returns whether node is an expression node."""
    return node.__class__.__name__ in expr_class_names
function_tokens: def is_expr ( node ) : return node . __class__ . __name__ in expr_class_names