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Solving system of linear equations over GF(2)

I tried solving system of equations using Matrix's solve_right(x) method. However, I want to check if the solution is unique. How can I achieve this? For a square matrix I do it by checking if A.determinant() != 0 (where A is the coefficients matrix). Is there some built in function to test uniqueness of matrix equation solution? I would like to return the solution if it is unique and show a message if there is no solution, or multiple solutions exist.

Thank you in advance!