pub unsafe extern "C" fn gegl_param_spec_double_set_steps(
pspec: *mut GeglParamSpecDouble,
small_step: c_double,
big_step: c_double,
)pub unsafe extern "C" fn gegl_param_spec_double_set_steps(
pspec: *mut GeglParamSpecDouble,
small_step: c_double,
big_step: c_double,
)