callback
Function that can be applied to responses to examine http status,
headers, and content, to debug or to write a custom parser for content.
The default callback parses content into a data.frame while dropping other
response values to make the output easily passable to tidyverse packages like
dplyr or ggplot2. For further details or debugging one can pass a fail or a
more compicated function.
model_id
Character scalar formated as 'source-target-domain'.
Source language (Arabic, Brazilian Portuguese, English, French, Italian,
or Spanish), target language (Arabic, Brazilian Portuguese, English, French,
Italian, or Spanish) and domain of text (conversational, news, patent).
Check IBM documentation for other language mappings.