c_g_param_spec_int64

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
GParamSpec* function(gchar* name, gchar* nick, gchar* blurb, gint64 minimum, gint64 maximum, gint64 defaultValue, GParamFlags flags) c_g_param_spec_int64;

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