compilation_unit {
  package_statement {
    package_name: "ExplorerTest"
  }
  is_api: true
  declarations {
    interface {
      name {
        name: "Runnable"
      }
      members {
        function {
          name {
            name: "Run"
          }
          self_pattern {
            binding_pattern {
              name: "self"
              type {
                expression_pattern {
                  expression {
                    identifier {
                      name: "Self"
                    }
                  }
                }
              }
            }
          }
          param_pattern {
          }
          return_term {
            kind: Expression
            type {
              int_type_literal {
              }
            }
          }
        }
      }
    }
  }
  declarations {
    interface {
      name {
        name: "Walkable"
      }
      members {
        function {
          name {
            name: "Walk"
          }
          self_pattern {
            binding_pattern {
              name: "self"
              type {
                expression_pattern {
                  expression {
                    identifier {
                      name: "Self"
                    }
                  }
                }
              }
            }
          }
          param_pattern {
          }
          return_term {
            kind: Expression
            type {
              int_type_literal {
              }
            }
          }
        }
      }
    }
  }
  declarations {
    constraint {
      name {
        name: "Traversible"
      }
      members {
        interface_extend {
          base {
            identifier {
              name: "Runnable"
            }
          }
        }
      }
      members {
        interface_extend {
          base {
            identifier {
              name: "Walkable"
            }
          }
        }
      }
    }
  }
  declarations {
    impl {
      kind: ExternalImpl
      impl_type {
        int_type_literal {
        }
      }
      interface {
        identifier {
          name: "Traversible"
        }
      }
      members {
        function {
          name {
            name: "Run"
          }
          self_pattern {
            binding_pattern {
              name: "self"
              type {
                expression_pattern {
                  expression {
                    int_type_literal {
                    }
                  }
                }
              }
            }
          }
          param_pattern {
          }
          return_term {
            kind: Expression
            type {
              int_type_literal {
              }
            }
          }
          body {
            statements {
              return_expression_statement {
                expression {
                  operator {
                    op: Mul
                    arguments {
                      int_literal {
                        value: 10
                      }
                    }
                    arguments {
                      identifier {
                        name: "self"
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
      members {
        function {
          name {
            name: "Walk"
          }
          self_pattern {
            binding_pattern {
              name: "self"
              type {
                expression_pattern {
                  expression {
                    int_type_literal {
                    }
                  }
                }
              }
            }
          }
          param_pattern {
          }
          return_term {
            kind: Expression
            type {
              int_type_literal {
              }
            }
          }
          body {
            statements {
              return_expression_statement {
                expression {
                  operator {
                    op: Add
                    arguments {
                      identifier {
                        name: "self"
                      }
                    }
                    arguments {
                      int_literal {
                        value: 1
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
  declarations {
    function {
      name {
        name: "Main"
      }
      param_pattern {
      }
      return_term {
        kind: Expression
        type {
          int_type_literal {
          }
        }
      }
      body {
        statements {
          variable_definition {
            pattern {
              binding_pattern {
                name: "n"
                type {
                  expression_pattern {
                    expression {
                      int_type_literal {
                      }
                    }
                  }
                }
              }
            }
            init {
              int_literal {
                value: 1
              }
            }
            is_returned: false
          }
        }
        statements {
          return_expression_statement {
            expression {
              operator {
                op: Add
                arguments {
                  call {
                    function {
                      compound_member_access {
                        object {
                          identifier {
                            name: "n"
                          }
                        }
                        path {
                          simple_member_access {
                            field: "Run"
                            object {
                              identifier {
                                name: "Runnable"
                              }
                            }
                          }
                        }
                      }
                    }
                    argument {
                      tuple_literal {
                      }
                    }
                  }
                }
                arguments {
                  call {
                    function {
                      compound_member_access {
                        object {
                          identifier {
                            name: "n"
                          }
                        }
                        path {
                          simple_member_access {
                            field: "Walk"
                            object {
                              identifier {
                                name: "Walkable"
                              }
                            }
                          }
                        }
                      }
                    }
                    argument {
                      tuple_literal {
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}