symbolics 4. also fix tests to remove Variable depwarn

[anandijain]

No description provided.

[codecov]

Codecov Report

Merging #40 (4e69e26) into main (9c10b75) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #40   +/-   ##
=======================================
  Coverage   63.63%   63.63%           
=======================================
  Files           4        4           
  Lines         154      154           
=======================================
  Hits           98       98           
  Misses         56       56           

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[coveralls]

Pull Request Test Coverage Report for Build 1445373513

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 63.636%

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Totals
Change from base Build 1146436237:	0.0%
Covered Lines:	98
Relevant Lines:	154

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💛 - Coveralls