code: def create_sp(operations, operation):
      
      operations.execute(
          "CREATE FUNCTION %s %s" % (
              operation.target.name, operation.target.sqltext
          )
      )
docs: Implements ``CREATE FUNCTION``.
  
      Args:
          operations: instance of ``alembic.operations.base.Operations``
          operation: instance of :class:`.ReversibleOp`
  
      Returns:
          ``None``