Private API

Apply a function over a grid (broadcast), or return nothing if input is nothing.

Convert Matrix fields to Vector{Vector} for JSON3 export.

JSON3 flattens Matrix{Float64} into 1D arrays, losing the 2D structure. This function converts all matrix fields to Vector{Vector} format to preserve dimensions.

Convert Dict{String,Any} back to Dict{Symbol,Any} after JSON deserialization. Uses symbol_keys metadata to restore Symbol types where they were originally present.

Deserialize a single value from JSON format. Uses symbol_keys to restore Symbol types at the correct paths.

Convert a JSON field (Vector{Vector} via stack) to Matrix{Float64}.

JSON exports matrices as Vector{Vector}. After stack(blob[field]; dims=1), we get either a Matrix (multi-D) or Vector (1D). This normalizes to Matrix.

Arguments

• blob_field: JSON array field (Vector of Vectors)

Returns

• Matrix{Float64}: (ntimepoints, n_dim)

Convert an optional JSON field to Matrix{Float64} or nothing.

Arguments

• blob_field: JSON array field or nothing

Returns

• Matrix{Float64} or nothing

Convert Dict{Symbol,Any} to Dict{String,Any} for JSON serialization. Only serializes JSON-compatible types (numbers, strings, bools, arrays, dicts). Returns a tuple: (serializeddict, symbolkeys) where symbol_keys tracks which values were Symbols.

Serialize a single value to JSON-compatible format. Returns a tuple: (serializedvalue, symbolpaths) where symbol_paths tracks Symbol locations.