This creates an XML-RPC methodCall and returns it as a string.
This is the low-level method that message_new is built on.
params is a Variant tuple representing the method parameters.
Serialization details: - "a{s*}" and "{s*}" are serialized as <struct> - "ay" is serialized as <base64> - Other arrays and
tuples are serialized as <array> - booleans are serialized as <boolean> - byte, int16, uint16 and int32 are serialized as <
int> - uint32 and int64 are serialized as the nonstandard <i8> type - doubles are serialized as <double> - Strings are
serialized as <string> - Variants (i.e. "v" type) are unwrapped and their child is serialized. - Variants
created by variant_new_datetime are serialized as <dateTime.iso8601
> - Other types are not supported and will return null and set error. This notably includes: object-paths,
signatures, uint64, handles, maybes and dictionaries with non-string keys.
If params is floating, it is consumed.
| method_name |
the name of the XML-RPC method |
| params |
a Variant tuple |
|
the text of the methodCall, or |