meridian.backend.result_type

Infers the result dtype from a list of input types, backend-agnostically.

meridian.backend.result_type(
    *types
) -> str

This acts as the single source of truth for type promotion rules. The promotion logic is designed to be consistent across all backends.

Rule: If any input is a float, the result is float32. Otherwise, the result is int64 to match NumPy/JAX's default behavior for precision.

Args
*types	A variable number of type objects (e.g., <class 'int'>, np.dtype('float32')).

Returns
A string representing the promoted dtype.