Return available Packet projects.

    CLI Example:

    .. code-block:: bash

        salt-cloud -f avail_projects packet-provider

def avail_projects(call=None):
    '''
    Return available Packet projects.

    CLI Example:

    .. code-block:: bash

        salt-cloud -f avail_projects packet-provider
    '''
    if call == 'action':
        raise SaltCloudException(
            'The avail_projects function must be called with -f or --function.'
        )

    vm_ = get_configured_provider()
    manager = packet.Manager(auth_token=vm_['token'])

    ret = {}

    for project in manager.list_projects():
        ret[project.name] = project.__dict__

    return ret