Function Sz_findPathByEntityID 

pub unsafe extern "C" fn Sz_findPathByEntityID(
    entityID1: i64,
    entityID2: i64,
    maxDegree: i64,
    responseBuf: *mut *mut c_char,
    bufSize: *mut usize,
    resizeFunc: Option<unsafe extern "C" fn(ptr: *mut c_void, newSize: usize) -> *mut c_void>,
) -> i64

@brief This method is used to find a relationship path between entities.

@param entityID1 The starting entity of the relationship path @param entityID2 The ending entity of the relationship path @param dataSourceCode1 The data source for the starting record of the relationship path @param recordID1 The record ID for the starting record of the relationship path @param dataSourceCode2 The data source for the ending record of the relationship path @param recordID2 The record ID for the ending record of the relationship path @param maxDegree The maximum degree of relationships to search @param responseBuf A memory buffer for returning the response document. @param bufSize The max number of bytes that can be stored in responseBuf. The response buffer must be able to hold the whole response message, or a resize method must be provided that may be used to resize the buffer. This will return the new size. @param resizeFunc A function pointer that can be used to resize the memory buffer specified in the responseBuf argument. This function will be called to allocate more memory if the response buffer is not large enough. This argument may be NULL. If it is NULL, the function will return an error if the result is larger than the buffer. @return Returns 0 for success. Returns -1 if the response status indicates failure or the Sz module is not initialized. Returns -2 if an exception was thrown and caught.