Add GetInt64Slice ?

[shenghui0779]

Preflight Checklist

• I have searched the issue tracker for an issue that matches the one I want to file, without success.

Problem Description

Add GetInt64Slice

Proposed Solution

Many times it is necessary to get []int64

Alternatives Considered

No response

Additional Information

No response

[github-actions]

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[shenghui0779]

Add GetFloatSlice ?