library(umx)
umx_set_table_format() # show current state
old = umx_set_table_format() # store existing value
umx_set_table_format("latex")
umx_set_table_format("html")
umx_set_table_format("markdown")
umx_set_table_format("") # get available options
umx_set_table_format(old) # reinstate
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