Question: how can i solve this pde equation

hello

why this pdsolve not be answer

pde := diff(T(x, y, t), x, x)+diff(T(x, y, t), y, y) = (1/0.44e-2)*(diff(T(x, y, t), t));
conds := T(0, y, t) = 1, T(1, y, t) = 1, T(x, 0, t) = 1, T(x, 1, t) = 1, T(x, y, 0) = 0;
`assuming`([pdsolve([pde, conds])], [0 <= x and x <= 1, 0 <= y and y <= 1, t >= 0]);
 

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