Function format

format(expression: string | LogicalExpression): string
Serialize a LogicalExpression (or expression string) to a canonical string representation.

Useful for normalising user-provided expressions: whitespace is standardised, parameter names are wrapped in [brackets], and operators are rendered consistently. Parsing followed by formatting acts as a round-trip normaliser.
Parameters
- expression: string | LogicalExpression
  An NCalc expression string or a pre-parsed LogicalExpression.
Returns string
The canonical string form of the expression.
Throws
ParserError If expression is a string that cannot be parsed.

Throws
ESCalcError If the AST contains an unrecognised node type.
Example
```
import { format } from 'escalc';

format('1+2');             // => '1 + 2'
format('[x]*[y]');         // => '[x] * [y]'
format('a not in (1,2)'); // => '[a] not in 1,2'
```
- Defined in src/format.ts:26