compilation_unit {
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    package_name: "ExplorerTest"
  }
  is_api: true
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        name: "Number"
      }
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          }
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          }
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    }
  }
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        name: "Point"
      }
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        }
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    }
  }
  declarations {
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      }
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      }
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          }
          param_pattern {
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              fields {
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          }
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                      }
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        name: "Sum"
      }
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            name: "Number"
          }
        }
      }
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                  }
                }
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}