def _get_op_filter(op_type: str) -> Callable:
    """Returns op specific check functions to check for if a single op
    is good candidate for group ops.
    """
    if op_type.startswith("gemm"):
        return _filter_gemm_op
    return _default_op_check
Returns op specific check functions to check for if a single op
    is good candidate for group ops.
    
python/aitemplate/compiler/transform/fuse_group_ops.py