c_gtk_source_completion_provider_display

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C) __gshared
void function(GtkSourceCompletionProvider* self, GtkSourceCompletionContext* context, GtkSourceCompletionProposal* proposal, GtkSourceCompletionCell* cell) c_gtk_source_completion_provider_display;

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