Is there an equivalent of retrieving all results for a gene name?

Right now you can specify a specific page size or number of pages for results. How would one request all results? Or know in advance how many results there are to retrieve?

s16_genes = omx.genes_by_name('CONTAINS 16S')

could have an option as below…

s16_genes = omx.genes_by_name('CONTAINS 16S', return_all = TRUE)