Required input / outputs

[r-shanahan]

Priority for post-parsing fix: How do we show if a sub-object of a request object is required? We only have annotations for the top object.
say we have:
// @Param type body input.MerchantStatement true "Request schema"

where the input.MerchantStatement object is required, and MerchantStatement looks like:

type MerchantStatement struct {
   Type     models.StatementType `json:"type"`
   FileType *StatementFileType    `json:"file_type,omitempty"`
}

How in API specs, do we intent to be able to mark sub fields of an object with mandatory or not (say Type was mandatory but FileType was not)? Will Speakeasy look at the json tags or object type?