Other headers as determined by the user (optional).
def get_other_headers() -> str: ... def set_other_headers(value: str) -> None: ...
other_headers = property(get_other_headers, set_other_headers)
This property can be set to a string of headers to be appended to the HTTP request headers created from other properties like content_type, from_, etc.
The headers must be of the format "header: value" as described in the HTTP specifications. Header lines should be separated by CRLF ("\r\n") .
Use this property with caution. If this property contains invalid headers, HTTP requests may fail.
This property is useful for extending the functionality of the class beyond what is provided.