Function mpsgraph_graph_variable_data 

pub unsafe extern "C" fn mpsgraph_graph_variable_data(
    graph_handle: *mut c_void,
    bytes: *const c_void,
    byte_len: usize,
    shape: *const usize,
    shape_len: usize,
    data_type: u32,
    name: *const c_char,
) -> *mut c_void

Calls the MPSGraph framework counterpart for mpsgraph_graph_variable_data.