Basic example:
Syntax: 'Hello: {0}'.deal('test')
Output: Hello: Test
Decimal example:
Syntax: 'First: {0:e2}; Second: {1:e3}, Third: {2:e4}'.deal(100.384247983, 257.78432947, 387.84782947)
Output: First: 100.38; Second: 257.784, Third: 387.8478
Syntax: 'Hello: {0}'.deal('test')
Output: Hello: Test
Syntax: 'First: {0:e2}; Second: {1:e3}, Third: {2:e4}'.deal(100.384247983, 257.78432947, 387.84782947)
Output: First: 100.38; Second: 257.784, Third: 387.8478