Where is Moodle Webservice API Methods Specification?

Hey guys,

Could someone help me where I can see the full specification of the API function core_course_create_courses, where it will be possible to display the expected input and return parameters of this function?

Here I have the list of functions: https://docs.moodle.org/dev/Web_service_API_functions

But where can I find the parameter specification for the core_course_create_courses function ?

Thank you in advance.