Typed Inttegro domain value.
@type t() :: %Inttegro.GhanaBankAccount{ branch: String.t() | nil, holder: Inttegro.FinancialAccountOwner.t(), name: String.t() | nil, number: String.t(), sort_code: String.t() | nil, swift_code: String.t() | nil }
@spec from_map(map()) :: t()
@spec new!(map() | keyword()) :: t()
@spec to_map(t()) :: map()