# target_user - if set, specifies the user to fetch traces for. if not set will fetch all traces
# paging_action - the action that will be linked back to from view
def list (target_user = nil, paging_action = 'list')
# target_user - if set, specifies the user to fetch traces for. if not set will fetch all traces
# paging_action - the action that will be linked back to from view
def list (target_user = nil, paging_action = 'list')