--
### Input
```lua
-- Create the tight binding Hamiltonian
HTB = NewTightBinding()

print("Printing the TB Object")
print(HTB)

print("Callable Properties:")
print("Cell:", HTB.Cell)
print("Units:", HTB.Units)
print("Atoms:", HTB.Atoms)
print("Hopping:", HTB.Hopping)
print("NF:", HTB.NF)

t1 = 1
t2 = 2

HTB.Name = "My wishes for dinner"

HTB.Units = {"2Pi", "Bohr", "Relative"}

HTB.Cell = {
    {1, 0, 0},
    {0, 1, 0},
    {0, 0, 1}
}

HTB.Atoms = {
    {"pizza", {0, 0, 0}, {{"Margherita", {"0"}}}},
    {"pasta", {0, 1, 0}, {{"Pesto", {"0"}}, {"Carbonara", {"0"}}}}
}

HTB.Hopping = {
    {"pizza.Margherita", "pasta.Pesto", {0, 1, 0}, {{t1}}},
    {"pasta.Pesto", "pizza.Margherita", {0, -1, 0}, {{t1}}},
    {"pizza.Margherita", "pasta.Carbonara", {0, 1, 0}, {{t2}}},
    {"pasta.Carbonara", "pizza.Margherita", {0, -1, 0}, {{t2}}}
}