def manual_variable_initialization(value):
    """Sets the manual variable initialization flag.

    This boolean flag determines whether
    variables should be initialized
    as they are instantiated (default), or if
    the user should handle the initialization
    (e.g. via `tf.initialize_all_variables()`).

    # Arguments
        value: Python boolean.
    """
    global _MANUAL_VAR_INIT
    _MANUAL_VAR_INIT = value
