This is a utility wrapper around hs_create that takes an original comment ID and creates a reply to it by adding the custom references field when constructing the annotation. Normal fields like
| 1 | 
| token | Character. Your account token, which you can generate at https://hypothes.is/register | 
| user | Character. Your user account, normally in the format  | 
| id | Character. The annotation ID to reply to. | 
| text | Character. Text to put in the body of the annotation. This will be coerced into a character vector of length 1 using paste. | 
| ... | Other arguments to pass to hs_create. | 
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