Ankh.HTTP.Request.validate_headers
You're seeing just the function
validate_headers, go back to Ankh.HTTP.Request module for more information.
Link to this function
validate_headers(headers, strict, forbidden \\ [])
Specs
validate_headers(Ankh.HTTP.headers(), boolean(), [Ankh.HTTP.header_name()]) :: :ok | {:error, :protocol_error}