class Steep::Errors::BlockParameterTypeMismatch

def initialize(node:, expected:, actual:)

def initialize(node:, expected:, actual:)
  super(node: node)
  @expected = expected
  @actual = actual
end

def to_s

def to_s
  "#{location_to_str}: BlockParameterTypeMismatch: expected=#{expected}, actual=#{actual}"
end