module GraphQL::Define::AssignObjectField

def self.call(owner_type, name, type_or_field = nil, desc = nil, function: nil, field: nil, relay_mutation_function: nil, **kwargs, &block)
  name_s = name.to_s
  # Move some positional args into keywords if they're present
  desc && kwargs[:description] ||= desc
  name && kwargs[:name] ||= name_s
  if !type_or_field.nil? && !type_or_field.is_a?(GraphQL::Field)
    # Maybe a string, proc or BaseType
    kwargs[:type] = type_or_field
  end
  base_field = if type_or_field.is_a?(GraphQL::Field)
    type_or_field.redefine(name: name_s)
  elsif function
    func_field = GraphQL::Function.build_field(function)
    func_field.name = name_s
    func_field
  elsif field.is_a?(GraphQL::Field)
    field.redefine(name: name_s)
  else
    nil
  end
  obj_field = if base_field
    base_field.redefine(kwargs, &block)
  else
    GraphQL::Field.define(kwargs, &block)
  end
  # Attach the field to the type
  owner_type.fields[name_s] = obj_field
end