class_docstr: Abstract base class for objects that can be used to compose an SQL string.
  
  `!Composable` objects can be passed directly to `~cursor.execute()`,
  `~cursor.executemany()`, `~cursor.copy_expert()` in place of the query
  string.
  
  `!Composable` objects can be joined using the ``+`` operator: the result
  will be a `Composed` instance containing the objects joined. The operator
  ``*`` is also supported with an integer argument: the result is a
  `!Composed` instance containing the left argument repeated as many times as
  requested.
code: def __mul__(self, n):
      return Composed([self] * n)
  
imports: import string
  from psycopg2 import extensions
label_desc: Use image node_id 5 for calling the Composable obj's underlying member method code with example usage: obj.__mul__(n) and returns: Composed