Function withAssignment

withAssignment(
params: Record<string, unknown>,
__namedParameters: ScopeAssignment,
): Record<string, unknown>
Return a copy of the params with one scope read replaced. The original params are unchanged; containers along the assignment path are copied or created when missing.

Negative indices count from the end of the existing array. For example, -1 replaces its last element and cannot be assigned in an empty array.
Parameters
- params: Record<string, unknown>
- __namedParameters: ScopeAssignment
Returns Record<string, unknown>
Throws
If an index exceeds MAX_COUNTERFACTUAL_INDEX, or a negative index resolves before the start of its array.