RestProxyCallserialize_params

gboolean
serialize_params (
  RestProxyCall* call,
  gchar** content_type,
  gchar** content,
  gsize* content_len,
  GError** error
)

Invoker for a virtual method to serialize the parameters for this RestProxyCall.

`content_type`	`gchar**`
	Content type of the payload.
	The argument will be set by the function.
	The called function takes ownership of the data, and is responsible for freeing it.
	The value is a NUL terminated UTF-8 string.
`content`	`gchar**`
	The payload.
	The argument will be set by the function.
	The called function takes ownership of the data, and is responsible for freeing it.
	The value is a NUL terminated UTF-8 string.
`content_len`	`gsize*`
	Length of the payload data.
	The argument will be set by the function.
`error`	`GError **`
	The return location for a `GError*`, or `NULL`.

Returns:	`gboolean`
	TRUE if the serialization was successful, FALSE otherwise.